[INFO] fetching crate message-format 0.0.1...
[INFO] testing message-format-0.0.1 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate message-format 0.0.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate message-format 0.0.1 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate message-format 0.0.1
[INFO] finished tweaking crates.io crate message-format 0.0.1
[INFO] tweaked toml for crates.io crate message-format 0.0.1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 178b8d953afe0db63ea75e2d315401a3ebc5a68e8a8d2d80a550d39defc6abb5
[INFO] running `Command { std: "docker" "start" "-a" "178b8d953afe0db63ea75e2d315401a3ebc5a68e8a8d2d80a550d39defc6abb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "178b8d953afe0db63ea75e2d315401a3ebc5a68e8a8d2d80a550d39defc6abb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "178b8d953afe0db63ea75e2d315401a3ebc5a68e8a8d2d80a550d39defc6abb5", kill_on_drop: false }`
[INFO] [stdout] 178b8d953afe0db63ea75e2d315401a3ebc5a68e8a8d2d80a550d39defc6abb5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4ddf063e0b1da1e666a270dd074fddee0324b737e69f25d153094ed7770ad862
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4ddf063e0b1da1e666a270dd074fddee0324b737e69f25d153094ed7770ad862", kill_on_drop: false }`
[INFO] [stderr]    Compiling message-format v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ast/plural_format.rs:135:21
[INFO] [stdout]     |
[INFO] [stdout] 135 |                     try!(write!(stream, "{}", string));
[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/ast/plural_format.rs:138:21
[INFO] [stdout]     |
[INFO] [stdout] 138 |                     try!(write!(stream, "{}", offset_value));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ast/plural_format.rs:140:52
[INFO] [stdout]     |
[INFO] [stdout] 140 |                 MessagePart::Format(ref format) => try!(format.format_message_part(stream, args)),
[INFO] [stdout]     |                                                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ast/plural_format.rs:160:9
[INFO] [stdout]     |
[INFO] [stdout] 160 |         try!(self.format_plural_message(stream, message, offset_value, args));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ast/select_format.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |         try!(self.default.format_message(stream, args));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ast/simple_format.rs:28:13
[INFO] [stdout]    |
[INFO] [stdout] 28 |             try!(write!(stream, "{}", value));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:42:21
[INFO] [stdout]    |
[INFO] [stdout] 42 |                     try!(stream.write_str(string));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:45:52
[INFO] [stdout]    |
[INFO] [stdout] 45 |                 MessagePart::Format(ref format) => try!(format.format_message_part(stream, args)),
[INFO] [stdout]    |                                                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ast/mod.rs:40:16
[INFO] [stdout]    |
[INFO] [stdout] 40 |     Format(Box<Format>),
[INFO] [stdout]    |                ^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 40 -     Format(Box<Format>),
[INFO] [stdout] 40 +     Format(Box<dyn Format>),
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:54:18
[INFO] [stdout]    |
[INFO] [stdout] 54 |     value: &'arg fmt::Display,
[INFO] [stdout]    |                  ^^^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 54 -     value: &'arg fmt::Display,
[INFO] [stdout] 54 +     value: &'arg dyn fmt::Display,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:38:47
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn format_message(&self, stream: &mut fmt::Write, args: &Args) -> fmt::Result {
[INFO] [stdout]    |                                               ^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 38 -     pub fn format_message(&self, stream: &mut fmt::Write, args: &Args) -> fmt::Result {
[INFO] [stdout] 38 +     pub fn format_message(&self, stream: &mut dyn fmt::Write, args: &Args) -> fmt::Result {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:69:46
[INFO] [stdout]    |
[INFO] [stdout] 69 |     pub fn get(&self, name: &str) -> Option<&fmt::Display> {
[INFO] [stdout]    |                                              ^^^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 69 -     pub fn get(&self, name: &str) -> Option<&fmt::Display> {
[INFO] [stdout] 69 +     pub fn get(&self, name: &str) -> Option<&dyn fmt::Display> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:74:56
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn arg(mut self, name: &'arg str, value: &'arg fmt::Display) -> Self {
[INFO] [stdout]    |                                                        ^^^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 74 -     pub fn arg(mut self, name: &'arg str, value: &'arg fmt::Display) -> Self {
[INFO] [stdout] 74 +     pub fn arg(mut self, name: &'arg str, value: &'arg dyn fmt::Display) -> Self {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ast/mod.rs:27:48
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn format_message_part(&self, stream: &mut fmt::Write, args: &Args) -> fmt::Result;
[INFO] [stdout]    |                                                ^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 27 -     fn format_message_part(&self, stream: &mut fmt::Write, args: &Args) -> fmt::Result;
[INFO] [stdout] 27 +     fn format_message_part(&self, stream: &mut dyn fmt::Write, args: &Args) -> fmt::Result;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/plural_format.rs:127:43
[INFO] [stdout]     |
[INFO] [stdout] 127 | ...                   stream: &mut fmt::Write,
[INFO] [stdout]     |                                    ^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 127 -                              stream: &mut fmt::Write,
[INFO] [stdout] 127 +                              stream: &mut dyn fmt::Write,
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/plural_format.rs:148:48
[INFO] [stdout]     |
[INFO] [stdout] 148 |     fn format_message_part(&self, stream: &mut fmt::Write, args: &Args) -> fmt::Result {
[INFO] [stdout]     |                                                ^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 148 -     fn format_message_part(&self, stream: &mut fmt::Write, args: &Args) -> fmt::Result {
[INFO] [stdout] 148 +     fn format_message_part(&self, stream: &mut dyn fmt::Write, args: &Args) -> fmt::Result {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ast/select_format.rs:47:48
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn format_message_part(&self, stream: &mut fmt::Write, args: &Args) -> fmt::Result {
[INFO] [stdout]    |                                                ^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 47 -     fn format_message_part(&self, stream: &mut fmt::Write, args: &Args) -> fmt::Result {
[INFO] [stdout] 47 +     fn format_message_part(&self, stream: &mut dyn fmt::Write, args: &Args) -> fmt::Result {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ast/simple_format.rs:26:48
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn format_message_part(&self, stream: &mut fmt::Write, args: &Args) -> fmt::Result {
[INFO] [stdout]    |                                                ^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 26 -     fn format_message_part(&self, stream: &mut fmt::Write, args: &Args) -> fmt::Result {
[INFO] [stdout] 26 +     fn format_message_part(&self, stream: &mut dyn fmt::Write, args: &Args) -> fmt::Result {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/parse_message.rs:29:14
[INFO] [stdout]    |
[INFO] [stdout] 29 |         self.description().fmt(f)
[INFO] [stdout]    |              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Format`
[INFO] [stdout]   --> src/lib.rs:22:11
[INFO] [stdout]    |
[INFO] [stdout] 22 | use ast::{Format, MessagePart};
[INFO] [stdout]    |           ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.36s
[INFO] running `Command { std: "docker" "inspect" "4ddf063e0b1da1e666a270dd074fddee0324b737e69f25d153094ed7770ad862", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ddf063e0b1da1e666a270dd074fddee0324b737e69f25d153094ed7770ad862", kill_on_drop: false }`
[INFO] [stdout] 4ddf063e0b1da1e666a270dd074fddee0324b737e69f25d153094ed7770ad862
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f5fad5774cd8ed34b53965bc9548fdb0557880f0d9f9154b85a54a820ccf4ced
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f5fad5774cd8ed34b53965bc9548fdb0557880f0d9f9154b85a54a820ccf4ced", kill_on_drop: false }`
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ast/plural_format.rs:135:21
[INFO] [stdout]     |
[INFO] [stdout] 135 |                     try!(write!(stream, "{}", string));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling message-format v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ast/plural_format.rs:138:21
[INFO] [stdout]     |
[INFO] [stdout] 138 |                     try!(write!(stream, "{}", offset_value));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ast/plural_format.rs:140:52
[INFO] [stdout]     |
[INFO] [stdout] 140 |                 MessagePart::Format(ref format) => try!(format.format_message_part(stream, args)),
[INFO] [stdout]     |                                                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ast/plural_format.rs:160:9
[INFO] [stdout]     |
[INFO] [stdout] 160 |         try!(self.format_plural_message(stream, message, offset_value, args));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ast/select_format.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |         try!(self.default.format_message(stream, args));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ast/simple_format.rs:28:13
[INFO] [stdout]    |
[INFO] [stdout] 28 |             try!(write!(stream, "{}", value));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:42:21
[INFO] [stdout]    |
[INFO] [stdout] 42 |                     try!(stream.write_str(string));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:45:52
[INFO] [stdout]    |
[INFO] [stdout] 45 |                 MessagePart::Format(ref format) => try!(format.format_message_part(stream, args)),
[INFO] [stdout]    |                                                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ast/mod.rs:40:16
[INFO] [stdout]    |
[INFO] [stdout] 40 |     Format(Box<Format>),
[INFO] [stdout]    |                ^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 40 -     Format(Box<Format>),
[INFO] [stdout] 40 +     Format(Box<dyn Format>),
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:54:18
[INFO] [stdout]    |
[INFO] [stdout] 54 |     value: &'arg fmt::Display,
[INFO] [stdout]    |                  ^^^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 54 -     value: &'arg fmt::Display,
[INFO] [stdout] 54 +     value: &'arg dyn fmt::Display,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:38:47
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn format_message(&self, stream: &mut fmt::Write, args: &Args) -> fmt::Result {
[INFO] [stdout]    |                                               ^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 38 -     pub fn format_message(&self, stream: &mut fmt::Write, args: &Args) -> fmt::Result {
[INFO] [stdout] 38 +     pub fn format_message(&self, stream: &mut dyn fmt::Write, args: &Args) -> fmt::Result {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:69:46
[INFO] [stdout]    |
[INFO] [stdout] 69 |     pub fn get(&self, name: &str) -> Option<&fmt::Display> {
[INFO] [stdout]    |                                              ^^^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 69 -     pub fn get(&self, name: &str) -> Option<&fmt::Display> {
[INFO] [stdout] 69 +     pub fn get(&self, name: &str) -> Option<&dyn fmt::Display> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:74:56
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn arg(mut self, name: &'arg str, value: &'arg fmt::Display) -> Self {
[INFO] [stdout]    |                                                        ^^^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 74 -     pub fn arg(mut self, name: &'arg str, value: &'arg fmt::Display) -> Self {
[INFO] [stdout] 74 +     pub fn arg(mut self, name: &'arg str, value: &'arg dyn fmt::Display) -> Self {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ast/mod.rs:27:48
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn format_message_part(&self, stream: &mut fmt::Write, args: &Args) -> fmt::Result;
[INFO] [stdout]    |                                                ^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 27 -     fn format_message_part(&self, stream: &mut fmt::Write, args: &Args) -> fmt::Result;
[INFO] [stdout] 27 +     fn format_message_part(&self, stream: &mut dyn fmt::Write, args: &Args) -> fmt::Result;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/plural_format.rs:127:43
[INFO] [stdout]     |
[INFO] [stdout] 127 | ...                   stream: &mut fmt::Write,
[INFO] [stdout]     |                                    ^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 127 -                              stream: &mut fmt::Write,
[INFO] [stdout] 127 +                              stream: &mut dyn fmt::Write,
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/plural_format.rs:148:48
[INFO] [stdout]     |
[INFO] [stdout] 148 |     fn format_message_part(&self, stream: &mut fmt::Write, args: &Args) -> fmt::Result {
[INFO] [stdout]     |                                                ^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 148 -     fn format_message_part(&self, stream: &mut fmt::Write, args: &Args) -> fmt::Result {
[INFO] [stdout] 148 +     fn format_message_part(&self, stream: &mut dyn fmt::Write, args: &Args) -> fmt::Result {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ast/select_format.rs:47:48
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn format_message_part(&self, stream: &mut fmt::Write, args: &Args) -> fmt::Result {
[INFO] [stdout]    |                                                ^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 47 -     fn format_message_part(&self, stream: &mut fmt::Write, args: &Args) -> fmt::Result {
[INFO] [stdout] 47 +     fn format_message_part(&self, stream: &mut dyn fmt::Write, args: &Args) -> fmt::Result {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ast/simple_format.rs:26:48
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn format_message_part(&self, stream: &mut fmt::Write, args: &Args) -> fmt::Result {
[INFO] [stdout]    |                                                ^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 26 -     fn format_message_part(&self, stream: &mut fmt::Write, args: &Args) -> fmt::Result {
[INFO] [stdout] 26 +     fn format_message_part(&self, stream: &mut dyn fmt::Write, args: &Args) -> fmt::Result {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/parse_message.rs:29:14
[INFO] [stdout]    |
[INFO] [stdout] 29 |         self.description().fmt(f)
[INFO] [stdout]    |              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Format`
[INFO] [stdout]   --> src/lib.rs:22:11
[INFO] [stdout]    |
[INFO] [stdout] 22 | use ast::{Format, MessagePart};
[INFO] [stdout]    |           ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ast/plural_format.rs:135:21
[INFO] [stdout]     |
[INFO] [stdout] 135 |                     try!(write!(stream, "{}", string));
[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/ast/plural_format.rs:138:21
[INFO] [stdout]     |
[INFO] [stdout] 138 |                     try!(write!(stream, "{}", offset_value));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ast/plural_format.rs:140:52
[INFO] [stdout]     |
[INFO] [stdout] 140 |                 MessagePart::Format(ref format) => try!(format.format_message_part(stream, args)),
[INFO] [stdout]     |                                                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ast/plural_format.rs:160:9
[INFO] [stdout]     |
[INFO] [stdout] 160 |         try!(self.format_plural_message(stream, message, offset_value, args));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ast/select_format.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |         try!(self.default.format_message(stream, args));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ast/simple_format.rs:28:13
[INFO] [stdout]    |
[INFO] [stdout] 28 |             try!(write!(stream, "{}", value));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:42:21
[INFO] [stdout]    |
[INFO] [stdout] 42 |                     try!(stream.write_str(string));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:45:52
[INFO] [stdout]    |
[INFO] [stdout] 45 |                 MessagePart::Format(ref format) => try!(format.format_message_part(stream, args)),
[INFO] [stdout]    |                                                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ast/mod.rs:40:16
[INFO] [stdout]    |
[INFO] [stdout] 40 |     Format(Box<Format>),
[INFO] [stdout]    |                ^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 40 -     Format(Box<Format>),
[INFO] [stdout] 40 +     Format(Box<dyn Format>),
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:54:18
[INFO] [stdout]    |
[INFO] [stdout] 54 |     value: &'arg fmt::Display,
[INFO] [stdout]    |                  ^^^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 54 -     value: &'arg fmt::Display,
[INFO] [stdout] 54 +     value: &'arg dyn fmt::Display,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:38:47
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn format_message(&self, stream: &mut fmt::Write, args: &Args) -> fmt::Result {
[INFO] [stdout]    |                                               ^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 38 -     pub fn format_message(&self, stream: &mut fmt::Write, args: &Args) -> fmt::Result {
[INFO] [stdout] 38 +     pub fn format_message(&self, stream: &mut dyn fmt::Write, args: &Args) -> fmt::Result {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:69:46
[INFO] [stdout]    |
[INFO] [stdout] 69 |     pub fn get(&self, name: &str) -> Option<&fmt::Display> {
[INFO] [stdout]    |                                              ^^^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 69 -     pub fn get(&self, name: &str) -> Option<&fmt::Display> {
[INFO] [stdout] 69 +     pub fn get(&self, name: &str) -> Option<&dyn fmt::Display> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:74:56
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn arg(mut self, name: &'arg str, value: &'arg fmt::Display) -> Self {
[INFO] [stdout]    |                                                        ^^^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 74 -     pub fn arg(mut self, name: &'arg str, value: &'arg fmt::Display) -> Self {
[INFO] [stdout] 74 +     pub fn arg(mut self, name: &'arg str, value: &'arg dyn fmt::Display) -> Self {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ast/mod.rs:27:48
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn format_message_part(&self, stream: &mut fmt::Write, args: &Args) -> fmt::Result;
[INFO] [stdout]    |                                                ^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 27 -     fn format_message_part(&self, stream: &mut fmt::Write, args: &Args) -> fmt::Result;
[INFO] [stdout] 27 +     fn format_message_part(&self, stream: &mut dyn fmt::Write, args: &Args) -> fmt::Result;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/plural_format.rs:127:43
[INFO] [stdout]     |
[INFO] [stdout] 127 | ...                   stream: &mut fmt::Write,
[INFO] [stdout]     |                                    ^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 127 -                              stream: &mut fmt::Write,
[INFO] [stdout] 127 +                              stream: &mut dyn fmt::Write,
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/plural_format.rs:148:48
[INFO] [stdout]     |
[INFO] [stdout] 148 |     fn format_message_part(&self, stream: &mut fmt::Write, args: &Args) -> fmt::Result {
[INFO] [stdout]     |                                                ^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 148 -     fn format_message_part(&self, stream: &mut fmt::Write, args: &Args) -> fmt::Result {
[INFO] [stdout] 148 +     fn format_message_part(&self, stream: &mut dyn fmt::Write, args: &Args) -> fmt::Result {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ast/select_format.rs:47:48
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn format_message_part(&self, stream: &mut fmt::Write, args: &Args) -> fmt::Result {
[INFO] [stdout]    |                                                ^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 47 -     fn format_message_part(&self, stream: &mut fmt::Write, args: &Args) -> fmt::Result {
[INFO] [stdout] 47 +     fn format_message_part(&self, stream: &mut dyn fmt::Write, args: &Args) -> fmt::Result {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ast/simple_format.rs:26:48
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn format_message_part(&self, stream: &mut fmt::Write, args: &Args) -> fmt::Result {
[INFO] [stdout]    |                                                ^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 26 -     fn format_message_part(&self, stream: &mut fmt::Write, args: &Args) -> fmt::Result {
[INFO] [stdout] 26 +     fn format_message_part(&self, stream: &mut dyn fmt::Write, args: &Args) -> fmt::Result {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/parse_message.rs:29:14
[INFO] [stdout]    |
[INFO] [stdout] 29 |         self.description().fmt(f)
[INFO] [stdout]    |              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Format`
[INFO] [stdout]   --> src/lib.rs:22:11
[INFO] [stdout]    |
[INFO] [stdout] 22 | use ast::{Format, MessagePart};
[INFO] [stdout]    |           ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.93s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/message_format-417b3e138c27ecf2)
[INFO] running `Command { std: "docker" "inspect" "f5fad5774cd8ed34b53965bc9548fdb0557880f0d9f9154b85a54a820ccf4ced", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5fad5774cd8ed34b53965bc9548fdb0557880f0d9f9154b85a54a820ccf4ced", kill_on_drop: false }`
[INFO] [stdout] f5fad5774cd8ed34b53965bc9548fdb0557880f0d9f9154b85a54a820ccf4ced
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c72b4e15920cea662b8d07b4ac51d70234d508b9626ce42d07e27837e6d10920
[INFO] running `Command { std: "docker" "start" "-a" "c72b4e15920cea662b8d07b4ac51d70234d508b9626ce42d07e27837e6d10920", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout] 
[INFO] [stderr]    --> src/ast/plural_format.rs:135:21
[INFO] [stdout] running 2 tests
[INFO] [stderr]     |
[INFO] [stdout] test ast::simple_format::tests::it_works ... ok
[INFO] [stderr] 135 |                     try!(write!(stream, "{}", string));
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stderr]     |                     ^^^
[INFO] [stdout] 
[INFO] [stderr]     |
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/ast/plural_format.rs:138:21
[INFO] [stderr]     |
[INFO] [stderr] 138 |                     try!(write!(stream, "{}", offset_value));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/ast/plural_format.rs:140:52
[INFO] [stderr]     |
[INFO] [stderr] 140 |                 MessagePart::Format(ref format) => try!(format.format_message_part(stream, args)),
[INFO] [stderr]     |                                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/ast/plural_format.rs:160:9
[INFO] [stderr]     |
[INFO] [stderr] 160 |         try!(self.format_plural_message(stream, message, offset_value, args));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/ast/select_format.rs:48:9
[INFO] [stderr]    |
[INFO] [stderr] 48 |         try!(self.default.format_message(stream, args));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/ast/simple_format.rs:28:13
[INFO] [stderr]    |
[INFO] [stderr] 28 |             try!(write!(stream, "{}", value));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:42:21
[INFO] [stderr]    |
[INFO] [stderr] 42 |                     try!(stream.write_str(string));
[INFO] [stderr]    |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:45:52
[INFO] [stderr]    |
[INFO] [stderr] 45 |                 MessagePart::Format(ref format) => try!(format.format_message_part(stream, args)),
[INFO] [stderr]    |                                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ast/mod.rs:40:16
[INFO] [stderr]    |
[INFO] [stderr] 40 |     Format(Box<Format>),
[INFO] [stderr]    |                ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 40 -     Format(Box<Format>),
[INFO] [stderr] 40 +     Format(Box<dyn Format>),
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:54:18
[INFO] [stderr]    |
[INFO] [stderr] 54 |     value: &'arg fmt::Display,
[INFO] [stderr]    |                  ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 54 -     value: &'arg fmt::Display,
[INFO] [stderr] 54 +     value: &'arg dyn fmt::Display,
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:38:47
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub fn format_message(&self, stream: &mut fmt::Write, args: &Args) -> fmt::Result {
[INFO] [stderr]    |                                               ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 38 -     pub fn format_message(&self, stream: &mut fmt::Write, args: &Args) -> fmt::Result {
[INFO] [stderr] 38 +     pub fn format_message(&self, stream: &mut dyn fmt::Write, args: &Args) -> fmt::Result {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:69:46
[INFO] [stderr]    |
[INFO] [stderr] 69 |     pub fn get(&self, name: &str) -> Option<&fmt::Display> {
[INFO] [stderr]    |                                              ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 69 -     pub fn get(&self, name: &str) -> Option<&fmt::Display> {
[INFO] [stderr] 69 +     pub fn get(&self, name: &str) -> Option<&dyn fmt::Display> {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:74:56
[INFO] [stderr]    |
[INFO] [stderr] 74 |     pub fn arg(mut self, name: &'arg str, value: &'arg fmt::Display) -> Self {
[INFO] [stderr]    |                                                        ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 74 -     pub fn arg(mut self, name: &'arg str, value: &'arg fmt::Display) -> Self {
[INFO] [stderr] 74 +     pub fn arg(mut self, name: &'arg str, value: &'arg dyn fmt::Display) -> Self {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ast/mod.rs:27:48
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn format_message_part(&self, stream: &mut fmt::Write, args: &Args) -> fmt::Result;
[INFO] [stderr]    |                                                ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 27 -     fn format_message_part(&self, stream: &mut fmt::Write, args: &Args) -> fmt::Result;
[INFO] [stderr] 27 +     fn format_message_part(&self, stream: &mut dyn fmt::Write, args: &Args) -> fmt::Result;
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ast/plural_format.rs:127:43
[INFO] [stderr]     |
[INFO] [stderr] 127 | ...                   stream: &mut fmt::Write,
[INFO] [stderr]     |                                    ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 127 -                              stream: &mut fmt::Write,
[INFO] [stderr] 127 +                              stream: &mut dyn fmt::Write,
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ast/plural_format.rs:148:48
[INFO] [stderr]     |
[INFO] [stderr] 148 |     fn format_message_part(&self, stream: &mut fmt::Write, args: &Args) -> fmt::Result {
[INFO] [stderr]     |                                                ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 148 -     fn format_message_part(&self, stream: &mut fmt::Write, args: &Args) -> fmt::Result {
[INFO] [stderr] 148 +     fn format_message_part(&self, stream: &mut dyn fmt::Write, args: &Args) -> fmt::Result {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ast/select_format.rs:47:48
[INFO] [stderr]    |
[INFO] [stderr] 47 |     fn format_message_part(&self, stream: &mut fmt::Write, args: &Args) -> fmt::Result {
[INFO] [stderr]    |                                                ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 47 -     fn format_message_part(&self, stream: &mut fmt::Write, args: &Args) -> fmt::Result {
[INFO] [stderr] 47 +     fn format_message_part(&self, stream: &mut dyn fmt::Write, args: &Args) -> fmt::Result {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ast/simple_format.rs:26:48
[INFO] [stderr]    |
[INFO] [stderr] 26 |     fn format_message_part(&self, stream: &mut fmt::Write, args: &Args) -> fmt::Result {
[INFO] [stderr]    |                                                ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 26 -     fn format_message_part(&self, stream: &mut fmt::Write, args: &Args) -> fmt::Result {
[INFO] [stderr] 26 +     fn format_message_part(&self, stream: &mut dyn fmt::Write, args: &Args) -> fmt::Result {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/parse_message.rs:29:14
[INFO] [stderr]    |
[INFO] [stderr] 29 |         self.description().fmt(f)
[INFO] [stderr]    |              ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Format`
[INFO] [stderr]   --> src/lib.rs:22:11
[INFO] [stderr]    |
[INFO] [stderr] 22 | use ast::{Format, MessagePart};
[INFO] [stderr]    |           ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `message-format` (lib) generated 20 warnings
[INFO] [stderr] warning: `message-format` (lib test) generated 20 warnings (20 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/message_format-417b3e138c27ecf2)
[INFO] [stderr]    Doc-tests message-format
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c72b4e15920cea662b8d07b4ac51d70234d508b9626ce42d07e27837e6d10920", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c72b4e15920cea662b8d07b4ac51d70234d508b9626ce42d07e27837e6d10920", kill_on_drop: false }`
[INFO] [stdout] c72b4e15920cea662b8d07b4ac51d70234d508b9626ce42d07e27837e6d10920