[INFO] fetching crate message-format 0.0.1...
[INFO] testing message-format-0.0.1 against beta-2020-10-09 for beta-1.48-1
[INFO] extracting crate message-format 0.0.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate message-format 0.0.1 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", 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-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bac3e3ba7e12bd31eb0458a81f9a92bd5e47a006c462a088c086edce7f483e39
[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" "bac3e3ba7e12bd31eb0458a81f9a92bd5e47a006c462a088c086edce7f483e39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bac3e3ba7e12bd31eb0458a81f9a92bd5e47a006c462a088c086edce7f483e39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bac3e3ba7e12bd31eb0458a81f9a92bd5e47a006c462a088c086edce7f483e39", kill_on_drop: false }`
[INFO] [stdout] bac3e3ba7e12bd31eb0458a81f9a92bd5e47a006c462a088c086edce7f483e39
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 40432450f59cd21c45a9ecd2449a88df640fc2a19f93da9df2a530adf32e01f0
[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" "40432450f59cd21c45a9ecd2449a88df640fc2a19f93da9df2a530adf32e01f0", 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/plural_format.rs:127:43
[INFO] [stdout]     |
[INFO] [stdout] 127 | ...                   stream: &mut fmt::Write,
[INFO] [stdout]     |                                    ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[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]     |                                                ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[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]    |                                                ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[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]    |                                                ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[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]    |                                                ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[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]    |                ^^^^^^ help: use `dyn`: `dyn Format`
[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]    |                                               ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[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]    |                  ^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display`
[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]    |                                              ^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display`
[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]    |                                                        ^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display`
[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 0.69s
[INFO] running `Command { std: "docker" "inspect" "40432450f59cd21c45a9ecd2449a88df640fc2a19f93da9df2a530adf32e01f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40432450f59cd21c45a9ecd2449a88df640fc2a19f93da9df2a530adf32e01f0", kill_on_drop: false }`
[INFO] [stdout] 40432450f59cd21c45a9ecd2449a88df640fc2a19f93da9df2a530adf32e01f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen" "--no-run" "--message-format=json", 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] cc4b1918aead49f54e4fd7bacfe1ad2558fe54af530d62b7517a2f0173186bb6
[INFO] running `Command { std: "docker" "start" "-a" "cc4b1918aead49f54e4fd7bacfe1ad2558fe54af530d62b7517a2f0173186bb6", 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/plural_format.rs:127:43
[INFO] [stdout]     |
[INFO] [stdout] 127 | ...                   stream: &mut fmt::Write,
[INFO] [stdout]     |                                    ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[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]     |                                                ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[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]    |                                                ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[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]    |                                                ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[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]    |                                                ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[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]    |                ^^^^^^ help: use `dyn`: `dyn Format`
[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]    |                                               ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[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]    |                  ^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display`
[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]    |                                              ^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display`
[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]    |                                                        ^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display`
[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/plural_format.rs:127:43
[INFO] [stdout]     |
[INFO] [stdout] 127 | ...                   stream: &mut fmt::Write,
[INFO] [stdout]     |                                    ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[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]     |                                                ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[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]    |                                                ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[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]    |                                                ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[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]    |                                                ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[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]    |                ^^^^^^ help: use `dyn`: `dyn Format`
[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]    |                                               ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[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]    |                  ^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display`
[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]    |                                              ^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display`
[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]    |                                                        ^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display`
[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 0.56s
[INFO] running `Command { std: "docker" "inspect" "cc4b1918aead49f54e4fd7bacfe1ad2558fe54af530d62b7517a2f0173186bb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc4b1918aead49f54e4fd7bacfe1ad2558fe54af530d62b7517a2f0173186bb6", kill_on_drop: false }`
[INFO] [stdout] cc4b1918aead49f54e4fd7bacfe1ad2558fe54af530d62b7517a2f0173186bb6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6f23b272124b7a4bbe994cd4004d17194d7112cfb2d64a34dd394925f89ca370
[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" "6f23b272124b7a4bbe994cd4004d17194d7112cfb2d64a34dd394925f89ca370", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/ast/plural_format.rs:135:21
[INFO] [stderr]     |
[INFO] [stderr] 135 |                     try!(write!(stream, "{}", string));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[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/plural_format.rs:127:43
[INFO] [stderr]     |
[INFO] [stderr] 127 | ...                   stream: &mut fmt::Write,
[INFO] [stderr]     |                                    ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[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]     |                                                ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[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]    |                                                ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[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]    |                                                ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[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]    |                                                ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[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]    |                ^^^^^^ help: use `dyn`: `dyn Format`
[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]    |                                               ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[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]    |                  ^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display`
[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]    |                                              ^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display`
[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]    |                                                        ^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display`
[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: 20 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/ast/plural_format.rs:135:21
[INFO] [stderr]     |
[INFO] [stderr] 135 |                     try!(write!(stream, "{}", string));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[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/plural_format.rs:127:43
[INFO] [stderr]     |
[INFO] [stderr] 127 | ...                   stream: &mut fmt::Write,
[INFO] [stderr]     |                                    ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[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]     |                                                ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[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]    |                                                ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[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]    |                                                ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[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]    |                                                ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[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]    |                ^^^^^^ help: use `dyn`: `dyn Format`
[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]    |                                               ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[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]    |                  ^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display`
[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]    |                                              ^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display`
[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]    |                                                        ^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display`
[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: 20 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/message_format-68166e201f4c6668
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] test ast::simple_format::tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6f23b272124b7a4bbe994cd4004d17194d7112cfb2d64a34dd394925f89ca370", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f23b272124b7a4bbe994cd4004d17194d7112cfb2d64a34dd394925f89ca370", kill_on_drop: false }`
[INFO] [stdout] 6f23b272124b7a4bbe994cd4004d17194d7112cfb2d64a34dd394925f89ca370
