[INFO] fetching crate slog-stream 1.2.1...
[INFO] building slog-stream-1.2.1 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] extracting crate slog-stream 1.2.1 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate slog-stream 1.2.1 on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate slog-stream 1.2.1
[INFO] finished tweaking crates.io crate slog-stream 1.2.1
[INFO] tweaked toml for crates.io crate slog-stream 1.2.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 4 packages to latest compatible versions
[INFO] [stderr]       Adding slog v1.7.1 (available: v2.7.0)
[INFO] [stderr]       Adding thread_local v0.3.6 (available: v1.1.8)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded slog v1.7.1
[INFO] [stderr]   Downloaded slog-extra v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 73247c16ef5bbb1cc4732cd715c9512b4f1542d6e62e076010ea9f27254f2cf1
[INFO] running `Command { std: "docker" "start" "-a" "73247c16ef5bbb1cc4732cd715c9512b4f1542d6e62e076010ea9f27254f2cf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "73247c16ef5bbb1cc4732cd715c9512b4f1542d6e62e076010ea9f27254f2cf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73247c16ef5bbb1cc4732cd715c9512b4f1542d6e62e076010ea9f27254f2cf1", kill_on_drop: false }`
[INFO] [stdout] 73247c16ef5bbb1cc4732cd715c9512b4f1542d6e62e076010ea9f27254f2cf1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dtail-expr-drop-order" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a67e51e10ad155453131a99d9dfb14b38ab2780f40fda90fb00d2eb765af8a86
[INFO] running `Command { std: "docker" "start" "-a" "a67e51e10ad155453131a99d9dfb14b38ab2780f40fda90fb00d2eb765af8a86", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling slog v1.7.1
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling slog-extra v0.1.2
[INFO] [stderr]    Compiling slog-stream v1.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> lib.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> lib.rs:58:21
[INFO] [stdout]    |
[INFO] [stdout] 58 |                     try!(self.format.format(&mut *buf, info, logger_values));
[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]   --> lib.rs:63:25
[INFO] [stdout]    |
[INFO] [stdout] 63 |                         try!(io.write_all(&buf));
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> lib.rs:60:38
[INFO] [stdout]    |
[INFO] [stdout] 60 |                         let mut io = try!(self.io
[INFO] [stdout]    |                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> format.rs:6:24
[INFO] [stdout]   |
[INFO] [stdout] 6 |               io: &mut io::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]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 6 |               io: &mut dyn io::Write,
[INFO] [stdout]   |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:30:32
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn fmt_msg(&self, io: &mut io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn fmt_msg(&self, io: &mut dyn io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:30:47
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn fmt_msg(&self, io: &mut io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn fmt_msg(&self, io: &mut io::Write, f: &dyn Fn(&mut io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:30:55
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn fmt_msg(&self, io: &mut io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn fmt_msg(&self, io: &mut io::Write, f: &Fn(&mut dyn io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:34:32
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn fmt_key(&self, io: &mut io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn fmt_key(&self, io: &mut dyn io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:34:47
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn fmt_key(&self, io: &mut io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn fmt_key(&self, io: &mut io::Write, f: &dyn Fn(&mut io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:34:55
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn fmt_key(&self, io: &mut io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn fmt_key(&self, io: &mut io::Write, f: &Fn(&mut dyn io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:38:38
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn fmt_separator(&self, io: &mut io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn fmt_separator(&self, io: &mut dyn io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:38:53
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn fmt_separator(&self, io: &mut io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn fmt_separator(&self, io: &mut io::Write, f: &dyn Fn(&mut io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:38:61
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn fmt_separator(&self, io: &mut io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn fmt_separator(&self, io: &mut io::Write, f: &Fn(&mut dyn io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:42:34
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn fmt_value(&self, io: &mut io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn fmt_value(&self, io: &mut dyn io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:42:49
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn fmt_value(&self, io: &mut io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn fmt_value(&self, io: &mut io::Write, f: &dyn Fn(&mut io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:42:57
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn fmt_value(&self, io: &mut io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn fmt_value(&self, io: &mut io::Write, f: &Fn(&mut dyn io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:46:38
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn fmt_timestamp(&self, io: &mut io::Write, f : &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn fmt_timestamp(&self, io: &mut dyn io::Write, f : &Fn(&mut io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:46:54
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn fmt_timestamp(&self, io: &mut io::Write, f : &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn fmt_timestamp(&self, io: &mut io::Write, f : &dyn Fn(&mut io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:46:62
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn fmt_timestamp(&self, io: &mut io::Write, f : &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn fmt_timestamp(&self, io: &mut io::Write, f : &Fn(&mut dyn io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:50:34
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn fmt_level(&self, io: &mut io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn fmt_level(&self, io: &mut dyn io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:50:49
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn fmt_level(&self, io: &mut io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn fmt_level(&self, io: &mut io::Write, f: &dyn Fn(&mut io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:50:57
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn fmt_level(&self, io: &mut io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn fmt_level(&self, io: &mut io::Write, f: &Fn(&mut dyn io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `Command { std: "docker" "inspect" "a67e51e10ad155453131a99d9dfb14b38ab2780f40fda90fb00d2eb765af8a86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a67e51e10ad155453131a99d9dfb14b38ab2780f40fda90fb00d2eb765af8a86", kill_on_drop: false }`
[INFO] [stdout] a67e51e10ad155453131a99d9dfb14b38ab2780f40fda90fb00d2eb765af8a86
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dtail-expr-drop-order" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d139fe53f980d8a14022786d9db84fc404ce492e2013392c49df5656e616e29
[INFO] running `Command { std: "docker" "start" "-a" "9d139fe53f980d8a14022786d9db84fc404ce492e2013392c49df5656e616e29", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> lib.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> lib.rs:58:21
[INFO] [stdout]    |
[INFO] [stdout] 58 |                     try!(self.format.format(&mut *buf, info, logger_values));
[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]   --> lib.rs:63:25
[INFO] [stdout]    |
[INFO] [stdout] 63 |                         try!(io.write_all(&buf));
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> lib.rs:60:38
[INFO] [stdout]    |
[INFO] [stdout] 60 |                         let mut io = try!(self.io
[INFO] [stdout]    |                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> format.rs:6:24
[INFO] [stdout]   |
[INFO] [stdout] 6 |               io: &mut io::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]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 6 |               io: &mut dyn io::Write,
[INFO] [stdout]   |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:30:32
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn fmt_msg(&self, io: &mut io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn fmt_msg(&self, io: &mut dyn io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:30:47
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn fmt_msg(&self, io: &mut io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn fmt_msg(&self, io: &mut io::Write, f: &dyn Fn(&mut io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:30:55
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn fmt_msg(&self, io: &mut io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn fmt_msg(&self, io: &mut io::Write, f: &Fn(&mut dyn io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:34:32
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn fmt_key(&self, io: &mut io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn fmt_key(&self, io: &mut dyn io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:34:47
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn fmt_key(&self, io: &mut io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn fmt_key(&self, io: &mut io::Write, f: &dyn Fn(&mut io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:34:55
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn fmt_key(&self, io: &mut io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn fmt_key(&self, io: &mut io::Write, f: &Fn(&mut dyn io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:38:38
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn fmt_separator(&self, io: &mut io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn fmt_separator(&self, io: &mut dyn io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:38:53
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn fmt_separator(&self, io: &mut io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn fmt_separator(&self, io: &mut io::Write, f: &dyn Fn(&mut io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:38:61
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn fmt_separator(&self, io: &mut io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn fmt_separator(&self, io: &mut io::Write, f: &Fn(&mut dyn io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:42:34
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn fmt_value(&self, io: &mut io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn fmt_value(&self, io: &mut dyn io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:42:49
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn fmt_value(&self, io: &mut io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn fmt_value(&self, io: &mut io::Write, f: &dyn Fn(&mut io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:42:57
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn fmt_value(&self, io: &mut io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn fmt_value(&self, io: &mut io::Write, f: &Fn(&mut dyn io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:46:38
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn fmt_timestamp(&self, io: &mut io::Write, f : &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn fmt_timestamp(&self, io: &mut dyn io::Write, f : &Fn(&mut io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:46:54
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn fmt_timestamp(&self, io: &mut io::Write, f : &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn fmt_timestamp(&self, io: &mut io::Write, f : &dyn Fn(&mut io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:46:62
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn fmt_timestamp(&self, io: &mut io::Write, f : &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn fmt_timestamp(&self, io: &mut io::Write, f : &Fn(&mut dyn io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:50:34
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn fmt_level(&self, io: &mut io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn fmt_level(&self, io: &mut dyn io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:50:49
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn fmt_level(&self, io: &mut io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn fmt_level(&self, io: &mut io::Write, f: &dyn Fn(&mut io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:50:57
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn fmt_level(&self, io: &mut io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn fmt_level(&self, io: &mut io::Write, f: &Fn(&mut dyn io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling slog-stream v1.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> lib.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> lib.rs:58:21
[INFO] [stdout]    |
[INFO] [stdout] 58 |                     try!(self.format.format(&mut *buf, info, logger_values));
[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]   --> lib.rs:63:25
[INFO] [stdout]    |
[INFO] [stdout] 63 |                         try!(io.write_all(&buf));
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> lib.rs:60:38
[INFO] [stdout]    |
[INFO] [stdout] 60 |                         let mut io = try!(self.io
[INFO] [stdout]    |                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> format.rs:6:24
[INFO] [stdout]   |
[INFO] [stdout] 6 |               io: &mut io::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]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 6 |               io: &mut dyn io::Write,
[INFO] [stdout]   |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:30:32
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn fmt_msg(&self, io: &mut io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn fmt_msg(&self, io: &mut dyn io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:30:47
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn fmt_msg(&self, io: &mut io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn fmt_msg(&self, io: &mut io::Write, f: &dyn Fn(&mut io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:30:55
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn fmt_msg(&self, io: &mut io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn fmt_msg(&self, io: &mut io::Write, f: &Fn(&mut dyn io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:34:32
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn fmt_key(&self, io: &mut io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn fmt_key(&self, io: &mut dyn io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:34:47
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn fmt_key(&self, io: &mut io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn fmt_key(&self, io: &mut io::Write, f: &dyn Fn(&mut io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:34:55
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn fmt_key(&self, io: &mut io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn fmt_key(&self, io: &mut io::Write, f: &Fn(&mut dyn io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:38:38
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn fmt_separator(&self, io: &mut io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn fmt_separator(&self, io: &mut dyn io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:38:53
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn fmt_separator(&self, io: &mut io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn fmt_separator(&self, io: &mut io::Write, f: &dyn Fn(&mut io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:38:61
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn fmt_separator(&self, io: &mut io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn fmt_separator(&self, io: &mut io::Write, f: &Fn(&mut dyn io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:42:34
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn fmt_value(&self, io: &mut io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn fmt_value(&self, io: &mut dyn io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:42:49
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn fmt_value(&self, io: &mut io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn fmt_value(&self, io: &mut io::Write, f: &dyn Fn(&mut io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:42:57
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn fmt_value(&self, io: &mut io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn fmt_value(&self, io: &mut io::Write, f: &Fn(&mut dyn io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:46:38
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn fmt_timestamp(&self, io: &mut io::Write, f : &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn fmt_timestamp(&self, io: &mut dyn io::Write, f : &Fn(&mut io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:46:54
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn fmt_timestamp(&self, io: &mut io::Write, f : &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn fmt_timestamp(&self, io: &mut io::Write, f : &dyn Fn(&mut io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:46:62
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn fmt_timestamp(&self, io: &mut io::Write, f : &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn fmt_timestamp(&self, io: &mut io::Write, f : &Fn(&mut dyn io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:50:34
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn fmt_level(&self, io: &mut io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn fmt_level(&self, io: &mut dyn io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:50:49
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn fmt_level(&self, io: &mut io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn fmt_level(&self, io: &mut io::Write, f: &dyn Fn(&mut io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> format.rs:50:57
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn fmt_level(&self, io: &mut io::Write, f: &Fn(&mut io::Write) -> io::Result<()>) -> io::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: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn fmt_level(&self, io: &mut io::Write, f: &Fn(&mut dyn io::Write) -> io::Result<()>) -> io::Result<()> {
[INFO] [stdout]    |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "9d139fe53f980d8a14022786d9db84fc404ce492e2013392c49df5656e616e29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d139fe53f980d8a14022786d9db84fc404ce492e2013392c49df5656e616e29", kill_on_drop: false }`
[INFO] [stdout] 9d139fe53f980d8a14022786d9db84fc404ce492e2013392c49df5656e616e29