[INFO] fetching crate slog-syslog 0.12.0...
[INFO] testing slog-syslog-0.12.0 against beta-2020-10-09 for beta-1.48-1
[INFO] extracting crate slog-syslog 0.12.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate slog-syslog 0.12.0 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 slog-syslog 0.12.0
[INFO] finished tweaking crates.io crate slog-syslog 0.12.0
[INFO] tweaked toml for crates.io crate slog-syslog 0.12.0 written to /workspace/builds/worker-12/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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unix_socket v0.5.0
[INFO] [stderr]   Downloaded syslog v3.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 4109b56bfac6952d92366463a9ace7915b7642139f5196950a4a1c966a938071
[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" "4109b56bfac6952d92366463a9ace7915b7642139f5196950a4a1c966a938071", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4109b56bfac6952d92366463a9ace7915b7642139f5196950a4a1c966a938071", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4109b56bfac6952d92366463a9ace7915b7642139f5196950a4a1c966a938071", kill_on_drop: false }`
[INFO] [stdout] 4109b56bfac6952d92366463a9ace7915b7642139f5196950a4a1c966a938071
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e639a494661d82f19699d8ea1043a4a38f7ef4fb1cda3db5b72348f4aeb79294
[INFO] running `Command { std: "docker" "start" "-a" "e639a494661d82f19699d8ea1043a4a38f7ef4fb1cda3db5b72348f4aeb79294", kill_on_drop: false }`
[INFO] [stderr]    Compiling unix_socket v0.5.0
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling syslog v3.3.0
[INFO] [stderr]    Compiling slog-syslog v0.12.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> lib.rs:87:21
[INFO] [stdout]    |
[INFO] [stdout] 87 |                     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:90:34
[INFO] [stdout]    |
[INFO] [stdout] 90 |                         let io = try!(
[INFO] [stdout]    |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> lib.rs:101:37
[INFO] [stdout]     |
[INFO] [stdout] 101 | ...                   let n = try!(io.send_raw(&buf[pos..]));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> lib.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |         try!(write!(io, "{}", record.msg()));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> lib.rs:138:13
[INFO] [stdout]     |
[INFO] [stdout] 138 |             try!(logger_kv.serialize(record, &mut ser));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> lib.rs:139:13
[INFO] [stdout]     |
[INFO] [stdout] 139 |             try!(record.kv().serialize(record, &mut ser));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> lib.rs:158:9
[INFO] [stdout]     |
[INFO] [stdout] 158 |         try!(write!(self.io, ", {}: {}", key, val));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> lib.rs:130:18
[INFO] [stdout]     |
[INFO] [stdout] 130 |         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: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.21s
[INFO] running `Command { std: "docker" "inspect" "e639a494661d82f19699d8ea1043a4a38f7ef4fb1cda3db5b72348f4aeb79294", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e639a494661d82f19699d8ea1043a4a38f7ef4fb1cda3db5b72348f4aeb79294", kill_on_drop: false }`
[INFO] [stdout] e639a494661d82f19699d8ea1043a4a38f7ef4fb1cda3db5b72348f4aeb79294
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] [stdout] 8d30fc9f3c90be47a3de0ff16c34f83cc4857a191b83faa281d1fa69c3834d72
[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" "8d30fc9f3c90be47a3de0ff16c34f83cc4857a191b83faa281d1fa69c3834d72", kill_on_drop: false }`
[INFO] [stderr]    Compiling slog-syslog v0.12.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> lib.rs:87:21
[INFO] [stdout]    |
[INFO] [stdout] 87 |                     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:90:34
[INFO] [stdout]    |
[INFO] [stdout] 90 |                         let io = try!(
[INFO] [stdout]    |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> lib.rs:101:37
[INFO] [stdout]     |
[INFO] [stdout] 101 | ...                   let n = try!(io.send_raw(&buf[pos..]));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> lib.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |         try!(write!(io, "{}", record.msg()));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> lib.rs:138:13
[INFO] [stdout]     |
[INFO] [stdout] 138 |             try!(logger_kv.serialize(record, &mut ser));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> lib.rs:139:13
[INFO] [stdout]     |
[INFO] [stdout] 139 |             try!(record.kv().serialize(record, &mut ser));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> lib.rs:158:9
[INFO] [stdout]     |
[INFO] [stdout] 158 |         try!(write!(self.io, ", {}: {}", key, val));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> lib.rs:130:18
[INFO] [stdout]     |
[INFO] [stdout] 130 |         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: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> lib.rs:87:21
[INFO] [stdout]    |
[INFO] [stdout] 87 |                     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:90:34
[INFO] [stdout]    |
[INFO] [stdout] 90 |                         let io = try!(
[INFO] [stdout]    |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> lib.rs:101:37
[INFO] [stdout]     |
[INFO] [stdout] 101 | ...                   let n = try!(io.send_raw(&buf[pos..]));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> lib.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |         try!(write!(io, "{}", record.msg()));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> lib.rs:138:13
[INFO] [stdout]     |
[INFO] [stdout] 138 |             try!(logger_kv.serialize(record, &mut ser));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> lib.rs:139:13
[INFO] [stdout]     |
[INFO] [stdout] 139 |             try!(record.kv().serialize(record, &mut ser));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> lib.rs:158:9
[INFO] [stdout]     |
[INFO] [stdout] 158 |         try!(write!(self.io, ", {}: {}", key, val));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> lib.rs:130:18
[INFO] [stdout]     |
[INFO] [stdout] 130 |         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: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.40s
[INFO] running `Command { std: "docker" "inspect" "8d30fc9f3c90be47a3de0ff16c34f83cc4857a191b83faa281d1fa69c3834d72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d30fc9f3c90be47a3de0ff16c34f83cc4857a191b83faa281d1fa69c3834d72", kill_on_drop: false }`
[INFO] [stdout] 8d30fc9f3c90be47a3de0ff16c34f83cc4857a191b83faa281d1fa69c3834d72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a98b5841d9f0a00bf346e78dbec9a67a9bcfbbb512f312367f840b53aa2f8465
[INFO] running `Command { std: "docker" "start" "-a" "a98b5841d9f0a00bf346e78dbec9a67a9bcfbbb512f312367f840b53aa2f8465", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> lib.rs:87:21
[INFO] [stderr]    |
[INFO] [stderr] 87 |                     try!(self.format.format(&mut *buf, info, logger_values));
[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]   --> lib.rs:90:34
[INFO] [stderr]    |
[INFO] [stderr] 90 |                         let io = try!(
[INFO] [stderr]    |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> lib.rs:101:37
[INFO] [stderr]     |
[INFO] [stderr] 101 | ...                   let n = try!(io.send_raw(&buf[pos..]));
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> lib.rs:134:9
[INFO] [stderr]     |
[INFO] [stderr] 134 |         try!(write!(io, "{}", record.msg()));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> lib.rs:138:13
[INFO] [stderr]     |
[INFO] [stderr] 138 |             try!(logger_kv.serialize(record, &mut ser));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> lib.rs:139:13
[INFO] [stderr]     |
[INFO] [stderr] 139 |             try!(record.kv().serialize(record, &mut ser));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> lib.rs:158:9
[INFO] [stderr]     |
[INFO] [stderr] 158 |         try!(write!(self.io, ", {}: {}", key, val));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> lib.rs:130:18
[INFO] [stderr]     |
[INFO] [stderr] 130 |         io: &mut io::Write,
[INFO] [stderr]     |                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> lib.rs:87:21
[INFO] [stderr]    |
[INFO] [stderr] 87 |                     try!(self.format.format(&mut *buf, info, logger_values));
[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]   --> lib.rs:90:34
[INFO] [stderr]    |
[INFO] [stderr] 90 |                         let io = try!(
[INFO] [stderr]    |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> lib.rs:101:37
[INFO] [stderr]     |
[INFO] [stderr] 101 | ...                   let n = try!(io.send_raw(&buf[pos..]));
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> lib.rs:134:9
[INFO] [stderr]     |
[INFO] [stderr] 134 |         try!(write!(io, "{}", record.msg()));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> lib.rs:138:13
[INFO] [stderr]     |
[INFO] [stderr] 138 |             try!(logger_kv.serialize(record, &mut ser));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> lib.rs:139:13
[INFO] [stderr]     |
[INFO] [stderr] 139 |             try!(record.kv().serialize(record, &mut ser));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> lib.rs:158:9
[INFO] [stderr]     |
[INFO] [stderr] 158 |         try!(write!(self.io, ", {}: {}", key, val));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> lib.rs:130:18
[INFO] [stderr]     |
[INFO] [stderr] 130 |         io: &mut io::Write,
[INFO] [stderr]     |                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/slog_syslog-b3f1c90ef7bdc637
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests slog-syslog
[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] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test lib.rs - (line 3) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a98b5841d9f0a00bf346e78dbec9a67a9bcfbbb512f312367f840b53aa2f8465", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a98b5841d9f0a00bf346e78dbec9a67a9bcfbbb512f312367f840b53aa2f8465", kill_on_drop: false }`
[INFO] [stdout] a98b5841d9f0a00bf346e78dbec9a67a9bcfbbb512f312367f840b53aa2f8465
