[INFO] crate netdb 0.1.0 is already in cache
[INFO] testing netdb-0.1.0 against 1.45.2 for beta-1.46-1
[INFO] extracting crate netdb 0.1.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate netdb 0.1.0 on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate netdb 0.1.0
[INFO] finished tweaking crates.io crate netdb 0.1.0
[INFO] tweaked toml for crates.io crate netdb 0.1.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cdb43241b43afc3dd4a25098d8e6f58932a9aaee31d5b3d247c9e851d3f7d346
[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" "cdb43241b43afc3dd4a25098d8e6f58932a9aaee31d5b3d247c9e851d3f7d346", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cdb43241b43afc3dd4a25098d8e6f58932a9aaee31d5b3d247c9e851d3f7d346", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdb43241b43afc3dd4a25098d8e6f58932a9aaee31d5b3d247c9e851d3f7d346", kill_on_drop: false }`
[INFO] [stdout] cdb43241b43afc3dd4a25098d8e6f58932a9aaee31d5b3d247c9e851d3f7d346
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7e6a6b96c342260ec8375bb6d1754b61b594e8a5e4c3447c2db0b544c59456fa
[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" "7e6a6b96c342260ec8375bb6d1754b61b594e8a5e4c3447c2db0b544c59456fa", kill_on_drop: false }`
[INFO] [stderr]    Compiling netdb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/hosts/files.rs:142:24
[INFO] [stdout]     |
[INFO] [stdout] 142 |         let mut file = try!(fs::File::open(path));
[INFO] [stdout]     |                        ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/hosts/files.rs:153:37
[INFO] [stdout]     |
[INFO] [stdout] 153 |             let _ = self.parse_line(try!(line));
[INFO] [stdout]     |                                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/hosts/files.rs:170:20
[INFO] [stdout]     |
[INFO] [stdout] 170 |         let addr = try!(words.next().ok_or(Error::ParseError));
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/hosts/files.rs:171:20
[INFO] [stdout]     |
[INFO] [stdout] 171 |         let addr = try!(IpAddr::from_str(addr));
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/hosts/files.rs:173:21
[INFO] [stdout]     |
[INFO] [stdout] 173 |         let cname = try!(words.next().ok_or(Error::ParseError));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/hosts/files.rs:174:21
[INFO] [stdout]     |
[INFO] [stdout] 174 |         let cname = try!(DNameBuf::from_str(cname));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/hosts/files.rs:180:24
[INFO] [stdout]     |
[INFO] [stdout] 180 |             let name = try!(DNameBuf::from_str(name));
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]    --> src/hosts/files.rs:204:40
[INFO] [stdout]     |
[INFO] [stdout] 204 |             Error::IoError(ref e) => e.description(),
[INFO] [stdout]     |                                        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]    --> src/hosts/files.rs:237:14
[INFO] [stdout]     |
[INFO] [stdout] 237 |         self.description().fmt(f)
[INFO] [stdout]     |              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.58s
[INFO] running `Command { std: "docker" "inspect" "7e6a6b96c342260ec8375bb6d1754b61b594e8a5e4c3447c2db0b544c59456fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e6a6b96c342260ec8375bb6d1754b61b594e8a5e4c3447c2db0b544c59456fa", kill_on_drop: false }`
[INFO] [stdout] 7e6a6b96c342260ec8375bb6d1754b61b594e8a5e4c3447c2db0b544c59456fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5ea9bab1e59b36665a70076048869454ac496edaa4ccedd89d0083e69d05f7c6
[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" "5ea9bab1e59b36665a70076048869454ac496edaa4ccedd89d0083e69d05f7c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling netdb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/hosts/files.rs:142:24
[INFO] [stdout]     |
[INFO] [stdout] 142 |         let mut file = try!(fs::File::open(path));
[INFO] [stdout]     |                        ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/hosts/files.rs:153:37
[INFO] [stdout]     |
[INFO] [stdout] 153 |             let _ = self.parse_line(try!(line));
[INFO] [stdout]     |                                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/hosts/files.rs:170:20
[INFO] [stdout]     |
[INFO] [stdout] 170 |         let addr = try!(words.next().ok_or(Error::ParseError));
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/hosts/files.rs:171:20
[INFO] [stdout]     |
[INFO] [stdout] 171 |         let addr = try!(IpAddr::from_str(addr));
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/hosts/files.rs:173:21
[INFO] [stdout]     |
[INFO] [stdout] 173 |         let cname = try!(words.next().ok_or(Error::ParseError));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/hosts/files.rs:174:21
[INFO] [stdout]     |
[INFO] [stdout] 174 |         let cname = try!(DNameBuf::from_str(cname));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/hosts/files.rs:180:24
[INFO] [stdout]     |
[INFO] [stdout] 180 |             let name = try!(DNameBuf::from_str(name));
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]    --> src/hosts/files.rs:204:40
[INFO] [stdout]     |
[INFO] [stdout] 204 |             Error::IoError(ref e) => e.description(),
[INFO] [stdout]     |                                        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]    --> src/hosts/files.rs:237:14
[INFO] [stdout]     |
[INFO] [stdout] 237 |         self.description().fmt(f)
[INFO] [stdout]     |              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/hosts/files.rs:142:24
[INFO] [stdout]     |
[INFO] [stdout] 142 |         let mut file = try!(fs::File::open(path));
[INFO] [stdout]     |                        ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/hosts/files.rs:153:37
[INFO] [stdout]     |
[INFO] [stdout] 153 |             let _ = self.parse_line(try!(line));
[INFO] [stdout]     |                                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/hosts/files.rs:170:20
[INFO] [stdout]     |
[INFO] [stdout] 170 |         let addr = try!(words.next().ok_or(Error::ParseError));
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/hosts/files.rs:171:20
[INFO] [stdout]     |
[INFO] [stdout] 171 |         let addr = try!(IpAddr::from_str(addr));
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/hosts/files.rs:173:21
[INFO] [stdout]     |
[INFO] [stdout] 173 |         let cname = try!(words.next().ok_or(Error::ParseError));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/hosts/files.rs:174:21
[INFO] [stdout]     |
[INFO] [stdout] 174 |         let cname = try!(DNameBuf::from_str(cname));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/hosts/files.rs:180:24
[INFO] [stdout]     |
[INFO] [stdout] 180 |             let name = try!(DNameBuf::from_str(name));
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]    --> src/hosts/files.rs:204:40
[INFO] [stdout]     |
[INFO] [stdout] 204 |             Error::IoError(ref e) => e.description(),
[INFO] [stdout]     |                                        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]    --> src/hosts/files.rs:237:14
[INFO] [stdout]     |
[INFO] [stdout] 237 |         self.description().fmt(f)
[INFO] [stdout]     |              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.43s
[INFO] running `Command { std: "docker" "inspect" "5ea9bab1e59b36665a70076048869454ac496edaa4ccedd89d0083e69d05f7c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ea9bab1e59b36665a70076048869454ac496edaa4ccedd89d0083e69d05f7c6", kill_on_drop: false }`
[INFO] [stdout] 5ea9bab1e59b36665a70076048869454ac496edaa4ccedd89d0083e69d05f7c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1f14a9ac6f9ac765fdc5b98727f5bf09a9167a7d40467264c82e79ea0308ae5a
[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" "1f14a9ac6f9ac765fdc5b98727f5bf09a9167a7d40467264c82e79ea0308ae5a", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/hosts/files.rs:142:24
[INFO] [stderr]     |
[INFO] [stderr] 142 |         let mut file = try!(fs::File::open(path));
[INFO] [stderr]     |                        ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/hosts/files.rs:153:37
[INFO] [stderr]     |
[INFO] [stderr] 153 |             let _ = self.parse_line(try!(line));
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/hosts/files.rs:170:20
[INFO] [stderr]     |
[INFO] [stderr] 170 |         let addr = try!(words.next().ok_or(Error::ParseError));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/hosts/files.rs:171:20
[INFO] [stderr]     |
[INFO] [stderr] 171 |         let addr = try!(IpAddr::from_str(addr));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/hosts/files.rs:173:21
[INFO] [stderr]     |
[INFO] [stderr] 173 |         let cname = try!(words.next().ok_or(Error::ParseError));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/hosts/files.rs:174:21
[INFO] [stderr]     |
[INFO] [stderr] 174 |         let cname = try!(DNameBuf::from_str(cname));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/hosts/files.rs:180:24
[INFO] [stderr]     |
[INFO] [stderr] 180 |             let name = try!(DNameBuf::from_str(name));
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/hosts/files.rs:204:40
[INFO] [stderr]     |
[INFO] [stderr] 204 |             Error::IoError(ref e) => e.description(),
[INFO] [stderr]     |                                        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/hosts/files.rs:237:14
[INFO] [stderr]     |
[INFO] [stderr] 237 |         self.description().fmt(f)
[INFO] [stderr]     |              ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/hosts/files.rs:142:24
[INFO] [stderr]     |
[INFO] [stderr] 142 |         let mut file = try!(fs::File::open(path));
[INFO] [stderr]     |                        ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/hosts/files.rs:153:37
[INFO] [stderr]     |
[INFO] [stderr] 153 |             let _ = self.parse_line(try!(line));
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/hosts/files.rs:170:20
[INFO] [stderr]     |
[INFO] [stderr] 170 |         let addr = try!(words.next().ok_or(Error::ParseError));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/hosts/files.rs:171:20
[INFO] [stderr]     |
[INFO] [stderr] 171 |         let addr = try!(IpAddr::from_str(addr));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/hosts/files.rs:173:21
[INFO] [stderr]     |
[INFO] [stderr] 173 |         let cname = try!(words.next().ok_or(Error::ParseError));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/hosts/files.rs:174:21
[INFO] [stderr]     |
[INFO] [stderr] 174 |         let cname = try!(DNameBuf::from_str(cname));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/hosts/files.rs:180:24
[INFO] [stderr]     |
[INFO] [stderr] 180 |             let name = try!(DNameBuf::from_str(name));
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/hosts/files.rs:204:40
[INFO] [stderr]     |
[INFO] [stderr] 204 |             Error::IoError(ref e) => e.description(),
[INFO] [stderr]     |                                        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/hosts/files.rs:237:14
[INFO] [stderr]     |
[INFO] [stderr] 237 |         self.description().fmt(f)
[INFO] [stderr]     |              ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.24s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/netdb-dc5eac46f47130a4
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests netdb
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1f14a9ac6f9ac765fdc5b98727f5bf09a9167a7d40467264c82e79ea0308ae5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f14a9ac6f9ac765fdc5b98727f5bf09a9167a7d40467264c82e79ea0308ae5a", kill_on_drop: false }`
[INFO] [stdout] 1f14a9ac6f9ac765fdc5b98727f5bf09a9167a7d40467264c82e79ea0308ae5a