[INFO] fetching crate slog-stream 1.2.1...
[INFO] checking slog-stream-1.2.1 against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] extracting crate slog-stream 1.2.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate slog-stream 1.2.1 on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "read-manifest" "--manifest-path" "Cargo.toml", 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-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7911e999e0630dd6c5f5eecaeabfd1e62b46b2bc1e86ffe99c41d33069a98323
[INFO] running `Command { std: "docker" "start" "-a" "7911e999e0630dd6c5f5eecaeabfd1e62b46b2bc1e86ffe99c41d33069a98323", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7911e999e0630dd6c5f5eecaeabfd1e62b46b2bc1e86ffe99c41d33069a98323", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7911e999e0630dd6c5f5eecaeabfd1e62b46b2bc1e86ffe99c41d33069a98323", kill_on_drop: false }`
[INFO] [stdout] 7911e999e0630dd6c5f5eecaeabfd1e62b46b2bc1e86ffe99c41d33069a98323
[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=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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 71a79e281cc3907b39a21a667b2af4a5e139a09999cde60449ddf9db91d67a8c
[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" "71a79e281cc3907b39a21a667b2af4a5e139a09999cde60449ddf9db91d67a8c", kill_on_drop: false }`
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking slog v1.7.1
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking slog-extra v0.1.2
[INFO] [stderr]     Checking 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: 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]   |                        ^^^^^^^^^ help: use `dyn`: `dyn io::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]   --> 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]    |                                ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[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]    |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut io::Write) -> io::Result<()>`
[INFO] [stdout] 
[INFO] [stdout] 
[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: 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]   |                        ^^^^^^^^^ help: use `dyn`: `dyn io::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]   --> 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]    |                                ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[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]    |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut io::Write) -> io::Result<()>`
[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]    |                                                       ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[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]    |                                ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[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]    |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut io::Write) -> io::Result<()>`
[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]    |                                                       ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[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]    |                                                       ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[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]    |                                ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[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]    |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut io::Write) -> io::Result<()>`
[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]    |                                                       ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[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]    |                                      ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[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]    |                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut io::Write) -> io::Result<()>`
[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]    |                                                             ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[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]    |                                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[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]    |                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut io::Write) -> io::Result<()>`
[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]    |                                                         ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[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]    |                                      ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[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]    |                                      ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[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]    |                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut io::Write) -> io::Result<()>`
[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]    |                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut io::Write) -> io::Result<()>`
[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]    |                                                             ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[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]    |                                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[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]    |                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut io::Write) -> io::Result<()>`
[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]    |                                                         ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[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]    |                                      ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[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]    |                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut io::Write) -> io::Result<()>`
[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]    |                                                              ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[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]    |                                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[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]    |                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut io::Write) -> io::Result<()>`
[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]    |                                                         ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[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:60:38
[INFO] [stdout]    |
[INFO] [stdout] 60 |                         let mut io = try!(self.io
[INFO] [stdout]    |                                      ^^^
[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: 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]    |                                                              ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[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]    |                                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[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]    |                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut io::Write) -> io::Result<()>`
[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]    |                                                         ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[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:60:38
[INFO] [stdout]    |
[INFO] [stdout] 60 |                         let mut io = try!(self.io
[INFO] [stdout]    |                                      ^^^
[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: 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "71a79e281cc3907b39a21a667b2af4a5e139a09999cde60449ddf9db91d67a8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71a79e281cc3907b39a21a667b2af4a5e139a09999cde60449ddf9db91d67a8c", kill_on_drop: false }`
[INFO] [stdout] 71a79e281cc3907b39a21a667b2af4a5e139a09999cde60449ddf9db91d67a8c