[INFO] fetching crate argparse 0.2.2...
[INFO] checking argparse-0.2.2 against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] extracting crate argparse 0.2.2 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate argparse 0.2.2 on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate argparse 0.2.2
[INFO] finished tweaking crates.io crate argparse 0.2.2
[INFO] tweaked toml for crates.io crate argparse 0.2.2 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7ef5fd9e11aa567d1cdbb11c3af0977578a709e33903d450a0748456c71a8624
[INFO] running `Command { std: "docker" "start" "-a" "7ef5fd9e11aa567d1cdbb11c3af0977578a709e33903d450a0748456c71a8624", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ef5fd9e11aa567d1cdbb11c3af0977578a709e33903d450a0748456c71a8624", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ef5fd9e11aa567d1cdbb11c3af0977578a709e33903d450a0748456c71a8624", kill_on_drop: false }`
[INFO] [stdout] 7ef5fd9e11aa567d1cdbb11c3af0977578a709e33903d450a0748456c71a8624
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3104ef5bb7d2344311979e19bd5a905954257358a625b5af2d1aacdec16467bf
[INFO] running `Command { std: "docker" "start" "-a" "3104ef5bb7d2344311979e19bd5a905954257358a625b5af2d1aacdec16467bf", kill_on_drop: false }`
[INFO] [stderr]     Checking argparse v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/action.rs:13:14
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Flag(Box<IFlagAction + 'a>),
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn IFlagAction + 'a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/action.rs:14:16
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Single(Box<IArgAction + 'a>),
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn IArgAction + 'a`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/action.rs:15:14
[INFO] [stdout]    |
[INFO] [stdout] 15 |     Push(Box<IArgsAction + 'a>),
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn IArgsAction + 'a`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/action.rs:16:14
[INFO] [stdout]    |
[INFO] [stdout] 16 |     Many(Box<IArgsAction + 'a>),
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn IArgsAction + 'a`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/action.rs:20:24
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn bind<'x>(&self, Rc<RefCell<&'x mut T>>) -> Action<'x>;
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Rc<RefCell<&'x mut T>>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parser.rs:84:17
[INFO] [stdout]    |
[INFO] [stdout] 84 |     action: Box<IArgAction + 'parser>,
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn IArgAction + 'parser`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser.rs:142:24
[INFO] [stdout]     |
[INFO] [stdout] 142 |     stderr: &'ctx mut (Write + 'ctx),
[INFO] [stdout]     |                        ^^^^^^^^^^^^ help: use `dyn`: `dyn Write + 'ctx`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser.rs:462:72
[INFO] [stdout]     |
[INFO] [stdout] 462 |     fn parse(parser: &ArgumentParser, args: &Vec<String>, stderr: &mut Write)
[INFO] [stdout]     |                                                                        ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser.rs:723:55
[INFO] [stdout]     |
[INFO] [stdout] 723 |     pub fn print_help(&self, name: &str, writer: &mut Write) -> IoResult<()> {
[INFO] [stdout]     |                                                       ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser.rs:730:56
[INFO] [stdout]     |
[INFO] [stdout] 730 |     pub fn print_usage(&self, name: &str, writer: &mut Write) -> IoResult<()>
[INFO] [stdout]     |                                                        ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser.rs:740:22
[INFO] [stdout]     |
[INFO] [stdout] 740 |         stdout: &mut Write, stderr: &mut Write)
[INFO] [stdout]     |                      ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser.rs:740:42
[INFO] [stdout]     |
[INFO] [stdout] 740 |         stdout: &mut Write, stderr: &mut Write)
[INFO] [stdout]     |                                          ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser.rs:762:68
[INFO] [stdout]     |
[INFO] [stdout] 762 |     pub fn error(&self, command: &str, message: &str, writer: &mut Write) {
[INFO] [stdout]     |                                                                    ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser.rs:817:19
[INFO] [stdout]     |
[INFO] [stdout] 817 |     buf: &'a mut (Write + 'a),
[INFO] [stdout]     |                   ^^^^^^^^^^ help: use `dyn`: `dyn Write + 'a`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser.rs:821:74
[INFO] [stdout]     |
[INFO] [stdout] 821 |     pub fn print_usage(parser: &ArgumentParser, name: &str, writer: &mut Write)
[INFO] [stdout]     |                                                                          ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser.rs:828:73
[INFO] [stdout]     |
[INFO] [stdout] 828 |     pub fn print_help(parser: &ArgumentParser, name: &str, writer: &mut Write)
[INFO] [stdout]     |                                                                         ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:839:9
[INFO] [stdout]     |
[INFO] [stdout] 839 |         try!(write!(self.buf, "  {}", arg.name));
[INFO] [stdout]     |         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:842:13
[INFO] [stdout]     |
[INFO] [stdout] 842 |             try!(write!(self.buf, "\n"));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:844:17
[INFO] [stdout]     |
[INFO] [stdout] 844 |                 try!(write!(self.buf, " "));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:848:17
[INFO] [stdout]     |
[INFO] [stdout] 848 |                 try!(write!(self.buf, " "));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:851:9
[INFO] [stdout]     |
[INFO] [stdout] 851 |         try!(wrap_text(self.buf, arg.help, TOTAL_WIDTH, OPTION_WIDTH));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:852:9
[INFO] [stdout]     |
[INFO] [stdout] 852 |         try!(write!(self.buf, "\n"));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:858:9
[INFO] [stdout]     |
[INFO] [stdout] 858 |         try!(write!(self.buf, "  "));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:861:9
[INFO] [stdout]     |
[INFO] [stdout] 861 |         try!(write!(self.buf, "{}", name));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:864:13
[INFO] [stdout]     |
[INFO] [stdout] 864 |             try!(write!(self.buf, ","));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:865:13
[INFO] [stdout]     |
[INFO] [stdout] 865 |             try!(write!(self.buf, "{}", name));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:871:17
[INFO] [stdout]     |
[INFO] [stdout] 871 |                 try!(write!(self.buf, " "));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:873:17
[INFO] [stdout]     |
[INFO] [stdout] 873 |                 try!(write!(self.buf, "{}", &var.metavar[..]));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:878:13
[INFO] [stdout]     |
[INFO] [stdout] 878 |             try!(write!(self.buf, "\n"));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:880:17
[INFO] [stdout]     |
[INFO] [stdout] 880 |                 try!(write!(self.buf, " "));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:884:17
[INFO] [stdout]     |
[INFO] [stdout] 884 |                 try!(write!(self.buf, " "));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:887:9
[INFO] [stdout]     |
[INFO] [stdout] 887 |         try!(wrap_text(self.buf, opt.help, TOTAL_WIDTH, OPTION_WIDTH));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:888:9
[INFO] [stdout]     |
[INFO] [stdout] 888 |         try!(write!(self.buf, "\n"));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:893:9
[INFO] [stdout]     |
[INFO] [stdout] 893 |         try!(self.write_usage());
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:894:9
[INFO] [stdout]     |
[INFO] [stdout] 894 |         try!(write!(self.buf, "\n"));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:896:13
[INFO] [stdout]     |
[INFO] [stdout] 896 |             try!(wrap_text(self.buf, self.parser.description,TOTAL_WIDTH, 0));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:897:13
[INFO] [stdout]     |
[INFO] [stdout] 897 |             try!(write!(self.buf, "\n"));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:902:13
[INFO] [stdout]     |
[INFO] [stdout] 902 |             try!(write!(self.buf, "\nPositional arguments:\n"));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:904:17
[INFO] [stdout]     |
[INFO] [stdout] 904 |                 try!(self.print_argument(&**arg));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:908:21
[INFO] [stdout]     |
[INFO] [stdout] 908 |                     try!(self.print_argument(&**opt));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:916:13
[INFO] [stdout]     |
[INFO] [stdout] 916 |             try!(write!(self.buf, "\nOptional arguments:\n"));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:918:17
[INFO] [stdout]     |
[INFO] [stdout] 918 |                 try!(self.print_option(&**opt));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:925:9
[INFO] [stdout]     |
[INFO] [stdout] 925 |         try!(write!(self.buf, "Usage:\n  "));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:926:9
[INFO] [stdout]     |
[INFO] [stdout] 926 |         try!(write!(self.buf, "{}", self.name));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/action.rs:13:14
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Flag(Box<IFlagAction + 'a>),
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn IFlagAction + 'a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:931:17
[INFO] [stdout]     |
[INFO] [stdout] 931 |                 try!(write!(self.buf, " [OPTIONS]"));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:935:17
[INFO] [stdout]     |
[INFO] [stdout] 935 |                 try!(write!(self.buf, " "));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:937:21
[INFO] [stdout]     |
[INFO] [stdout] 937 |                     try!(write!(self.buf, "["));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/action.rs:14:16
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Single(Box<IArgAction + 'a>),
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn IArgAction + 'a`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:939:17
[INFO] [stdout]     |
[INFO] [stdout] 939 |                 try!(write!(self.buf, "{}",
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:942:21
[INFO] [stdout]     |
[INFO] [stdout] 942 |                     try!(write!(self.buf, "]"));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:948:21
[INFO] [stdout]     |
[INFO] [stdout] 948 |                     try!(write!(self.buf, " "));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/action.rs:15:14
[INFO] [stdout]    |
[INFO] [stdout] 15 |     Push(Box<IArgsAction + 'a>),
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn IArgsAction + 'a`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:950:25
[INFO] [stdout]     |
[INFO] [stdout] 950 |                         try!(write!(self.buf, "["));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/action.rs:16:14
[INFO] [stdout]    |
[INFO] [stdout] 16 |     Many(Box<IArgsAction + 'a>),
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn IArgsAction + 'a`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:952:21
[INFO] [stdout]     |
[INFO] [stdout] 952 |                     try!(write!(self.buf, "{}",
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:955:25
[INFO] [stdout]     |
[INFO] [stdout] 955 |                         try!(write!(self.buf, " ...]"));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:957:25
[INFO] [stdout]     |
[INFO] [stdout] 957 |                         try!(write!(self.buf, " [...]"));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/action.rs:20:24
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn bind<'x>(&self, Rc<RefCell<&'x mut T>>) -> Action<'x>;
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Rc<RefCell<&'x mut T>>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:963:9
[INFO] [stdout]     |
[INFO] [stdout] 963 |         try!(write!(self.buf, "\n"));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/help.rs:74:13
[INFO] [stdout]    |
[INFO] [stdout] 74 |             try!(buf.write(word.as_bytes()));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parser.rs:84:17
[INFO] [stdout]    |
[INFO] [stdout] 84 |     action: Box<IArgAction + 'parser>,
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn IArgAction + 'parser`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/help.rs:80:13
[INFO] [stdout]    |
[INFO] [stdout] 80 |             try!(buf.write(b"\n"));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/help.rs:82:17
[INFO] [stdout]    |
[INFO] [stdout] 82 |                 try!(buf.write(b" "));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser.rs:142:24
[INFO] [stdout]     |
[INFO] [stdout] 142 |     stderr: &'ctx mut (Write + 'ctx),
[INFO] [stdout]     |                        ^^^^^^^^^^^^ help: use `dyn`: `dyn Write + 'ctx`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/help.rs:86:13
[INFO] [stdout]    |
[INFO] [stdout] 86 |             try!(buf.write(b" "));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/help.rs:89:9
[INFO] [stdout]    |
[INFO] [stdout] 89 |         try!(buf.write(word.as_bytes()));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser.rs:462:72
[INFO] [stdout]     |
[INFO] [stdout] 462 |     fn parse(parser: &ArgumentParser, args: &Vec<String>, stderr: &mut Write)
[INFO] [stdout]     |                                                                        ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/help.rs:64:28
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub fn wrap_text(buf: &mut Write, data: &str, width: usize, indent: usize)
[INFO] [stdout]    |                            ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser.rs:723:55
[INFO] [stdout]     |
[INFO] [stdout] 723 |     pub fn print_help(&self, name: &str, writer: &mut Write) -> IoResult<()> {
[INFO] [stdout]     |                                                       ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser.rs:730:56
[INFO] [stdout]     |
[INFO] [stdout] 730 |     pub fn print_usage(&self, name: &str, writer: &mut Write) -> IoResult<()>
[INFO] [stdout]     |                                                        ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser.rs:740:22
[INFO] [stdout]     |
[INFO] [stdout] 740 |         stdout: &mut Write, stderr: &mut Write)
[INFO] [stdout]     |                      ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser.rs:740:42
[INFO] [stdout]     |
[INFO] [stdout] 740 |         stdout: &mut Write, stderr: &mut Write)
[INFO] [stdout]     |                                          ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser.rs:762:68
[INFO] [stdout]     |
[INFO] [stdout] 762 |     pub fn error(&self, command: &str, message: &str, writer: &mut Write) {
[INFO] [stdout]     |                                                                    ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser.rs:817:19
[INFO] [stdout]     |
[INFO] [stdout] 817 |     buf: &'a mut (Write + 'a),
[INFO] [stdout]     |                   ^^^^^^^^^^ help: use `dyn`: `dyn Write + 'a`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser.rs:821:74
[INFO] [stdout]     |
[INFO] [stdout] 821 |     pub fn print_usage(parser: &ArgumentParser, name: &str, writer: &mut Write)
[INFO] [stdout]     |                                                                          ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser.rs:828:73
[INFO] [stdout]     |
[INFO] [stdout] 828 |     pub fn print_help(parser: &ArgumentParser, name: &str, writer: &mut Write)
[INFO] [stdout]     |                                                                         ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:839:9
[INFO] [stdout]     |
[INFO] [stdout] 839 |         try!(write!(self.buf, "  {}", arg.name));
[INFO] [stdout]     |         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:842:13
[INFO] [stdout]     |
[INFO] [stdout] 842 |             try!(write!(self.buf, "\n"));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:844:17
[INFO] [stdout]     |
[INFO] [stdout] 844 |                 try!(write!(self.buf, " "));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:848:17
[INFO] [stdout]     |
[INFO] [stdout] 848 |                 try!(write!(self.buf, " "));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:851:9
[INFO] [stdout]     |
[INFO] [stdout] 851 |         try!(wrap_text(self.buf, arg.help, TOTAL_WIDTH, OPTION_WIDTH));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:852:9
[INFO] [stdout]     |
[INFO] [stdout] 852 |         try!(write!(self.buf, "\n"));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:858:9
[INFO] [stdout]     |
[INFO] [stdout] 858 |         try!(write!(self.buf, "  "));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:861:9
[INFO] [stdout]     |
[INFO] [stdout] 861 |         try!(write!(self.buf, "{}", name));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:864:13
[INFO] [stdout]     |
[INFO] [stdout] 864 |             try!(write!(self.buf, ","));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:865:13
[INFO] [stdout]     |
[INFO] [stdout] 865 |             try!(write!(self.buf, "{}", name));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:871:17
[INFO] [stdout]     |
[INFO] [stdout] 871 |                 try!(write!(self.buf, " "));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:873:17
[INFO] [stdout]     |
[INFO] [stdout] 873 |                 try!(write!(self.buf, "{}", &var.metavar[..]));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:878:13
[INFO] [stdout]     |
[INFO] [stdout] 878 |             try!(write!(self.buf, "\n"));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:880:17
[INFO] [stdout]     |
[INFO] [stdout] 880 |                 try!(write!(self.buf, " "));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:884:17
[INFO] [stdout]     |
[INFO] [stdout] 884 |                 try!(write!(self.buf, " "));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:887:9
[INFO] [stdout]     |
[INFO] [stdout] 887 |         try!(wrap_text(self.buf, opt.help, TOTAL_WIDTH, OPTION_WIDTH));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:888:9
[INFO] [stdout]     |
[INFO] [stdout] 888 |         try!(write!(self.buf, "\n"));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:893:9
[INFO] [stdout]     |
[INFO] [stdout] 893 |         try!(self.write_usage());
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:894:9
[INFO] [stdout]     |
[INFO] [stdout] 894 |         try!(write!(self.buf, "\n"));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:896:13
[INFO] [stdout]     |
[INFO] [stdout] 896 |             try!(wrap_text(self.buf, self.parser.description,TOTAL_WIDTH, 0));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:897:13
[INFO] [stdout]     |
[INFO] [stdout] 897 |             try!(write!(self.buf, "\n"));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:902:13
[INFO] [stdout]     |
[INFO] [stdout] 902 |             try!(write!(self.buf, "\nPositional arguments:\n"));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:904:17
[INFO] [stdout]     |
[INFO] [stdout] 904 |                 try!(self.print_argument(&**arg));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:908:21
[INFO] [stdout]     |
[INFO] [stdout] 908 |                     try!(self.print_argument(&**opt));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:916:13
[INFO] [stdout]     |
[INFO] [stdout] 916 |             try!(write!(self.buf, "\nOptional arguments:\n"));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:918:17
[INFO] [stdout]     |
[INFO] [stdout] 918 |                 try!(self.print_option(&**opt));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:925:9
[INFO] [stdout]     |
[INFO] [stdout] 925 |         try!(write!(self.buf, "Usage:\n  "));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:926:9
[INFO] [stdout]     |
[INFO] [stdout] 926 |         try!(write!(self.buf, "{}", self.name));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:931:17
[INFO] [stdout]     |
[INFO] [stdout] 931 |                 try!(write!(self.buf, " [OPTIONS]"));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:935:17
[INFO] [stdout]     |
[INFO] [stdout] 935 |                 try!(write!(self.buf, " "));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:937:21
[INFO] [stdout]     |
[INFO] [stdout] 937 |                     try!(write!(self.buf, "["));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:939:17
[INFO] [stdout]     |
[INFO] [stdout] 939 |                 try!(write!(self.buf, "{}",
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:942:21
[INFO] [stdout]     |
[INFO] [stdout] 942 |                     try!(write!(self.buf, "]"));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:948:21
[INFO] [stdout]     |
[INFO] [stdout] 948 |                     try!(write!(self.buf, " "));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:950:25
[INFO] [stdout]     |
[INFO] [stdout] 950 |                         try!(write!(self.buf, "["));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:952:21
[INFO] [stdout]     |
[INFO] [stdout] 952 |                     try!(write!(self.buf, "{}",
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:955:25
[INFO] [stdout]     |
[INFO] [stdout] 955 |                         try!(write!(self.buf, " ...]"));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:957:25
[INFO] [stdout]     |
[INFO] [stdout] 957 |                         try!(write!(self.buf, " [...]"));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:963:9
[INFO] [stdout]     |
[INFO] [stdout] 963 |         try!(write!(self.buf, "\n"));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/help.rs:74:13
[INFO] [stdout]    |
[INFO] [stdout] 74 |             try!(buf.write(word.as_bytes()));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/help.rs:80:13
[INFO] [stdout]    |
[INFO] [stdout] 80 |             try!(buf.write(b"\n"));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/help.rs:82:17
[INFO] [stdout]    |
[INFO] [stdout] 82 |                 try!(buf.write(b" "));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/help.rs:86:13
[INFO] [stdout]    |
[INFO] [stdout] 86 |             try!(buf.write(b" "));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/help.rs:89:9
[INFO] [stdout]    |
[INFO] [stdout] 89 |         try!(buf.write(word.as_bytes()));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/help.rs:64:28
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub fn wrap_text(buf: &mut Write, data: &str, width: usize, indent: usize)
[INFO] [stdout]    |                            ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/parser.rs:555:43
[INFO] [stdout]     |
[INFO] [stdout] 555 |                       Some(ref y) => panic!(format!(
[INFO] [stdout]     |  ___________________________________________^
[INFO] [stdout] 556 | |                         "Option {} conflicts with option {}",
[INFO] [stdout] 557 | |                         name, y.name)),
[INFO] [stdout]     | |_____________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]     = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 555 |                     Some(ref y) => panic!(
[INFO] [stdout] 556 |                         "Option {} conflicts with option {}",
[INFO] [stdout] 557 |                         name, y.name),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 62 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/parser.rs:555:43
[INFO] [stdout]     |
[INFO] [stdout] 555 |                       Some(ref y) => panic!(format!(
[INFO] [stdout]     |  ___________________________________________^
[INFO] [stdout] 556 | |                         "Option {} conflicts with option {}",
[INFO] [stdout] 557 | |                         name, y.name)),
[INFO] [stdout]     | |_____________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]     = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 555 |                     Some(ref y) => panic!(
[INFO] [stdout] 556 |                         "Option {} conflicts with option {}",
[INFO] [stdout] 557 |                         name, y.name),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/test_parser.rs:15:13
[INFO] [stdout]    |
[INFO] [stdout] 15 | /             String::from_utf8(stderr).unwrap() +
[INFO] [stdout] 16 | |             &format!("Expected ok, but found Exit({})", x)[..]),
[INFO] [stdout]    | |______________________________________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 15 |             "{}", String::from_utf8(stderr).unwrap() +
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 14 |         Err(x) => std::panic::panic_any(
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/test_parser.rs:30:26
[INFO] [stdout]    |
[INFO] [stdout] 30 |         Err(x) => panic!(format!("Expected code {} got {}", 0usize, x)),
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 30 |         Err(x) => panic!("Expected code {} got {}", 0usize, x),
[INFO] [stdout]    |                         --                                  --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/test_parser.rs:31:26
[INFO] [stdout]    |
[INFO] [stdout] 31 |         Ok(()) => panic!(format!("Expected failure, got success")),
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 31 |         Ok(()) => panic!("Expected failure, got success"),
[INFO] [stdout]    |                         --                             --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/test_parser.rs:45:26
[INFO] [stdout]    |
[INFO] [stdout] 45 |         Err(x) => panic!(format!("Expected code {} got {}", 2usize, x)),
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 45 |         Err(x) => panic!("Expected code {} got {}", 2usize, x),
[INFO] [stdout]    |                         --                                  --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/test_parser.rs:46:26
[INFO] [stdout]    |
[INFO] [stdout] 46 |         Ok(()) => panic!(format!("Expected failure, got success")),
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 46 |         Ok(()) => panic!("Expected failure, got success"),
[INFO] [stdout]    |                         --                             --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 67 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `Command { std: "docker" "inspect" "3104ef5bb7d2344311979e19bd5a905954257358a625b5af2d1aacdec16467bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3104ef5bb7d2344311979e19bd5a905954257358a625b5af2d1aacdec16467bf", kill_on_drop: false }`
[INFO] [stdout] 3104ef5bb7d2344311979e19bd5a905954257358a625b5af2d1aacdec16467bf