[INFO] fetching crate udev-dl 0.0.1...
[INFO] testing udev-dl-0.0.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate udev-dl 0.0.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate udev-dl 0.0.1
[INFO] finished tweaking crates.io crate udev-dl 0.0.1
[INFO] tweaked toml for crates.io crate udev-dl 0.0.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate udev-dl 0.0.1 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 2 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] be4291f97a79b5e01a106b606786a761e53182e48fa217001f21533f9321c381
[INFO] running `Command { std: "docker" "start" "-a" "be4291f97a79b5e01a106b606786a761e53182e48fa217001f21533f9321c381", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be4291f97a79b5e01a106b606786a761e53182e48fa217001f21533f9321c381", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be4291f97a79b5e01a106b606786a761e53182e48fa217001f21533f9321c381", kill_on_drop: false }`
[INFO] [stdout] be4291f97a79b5e01a106b606786a761e53182e48fa217001f21533f9321c381
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 12e9f59c7d35c0ba28f251cdc30952802d9d11b9428f8953ec24c90904cfb2d8
[INFO] running `Command { std: "docker" "start" "-a" "12e9f59c7d35c0ba28f251cdc30952802d9d11b9428f8953ec24c90904cfb2d8", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling libc v0.2.176
[INFO] [stderr]    Compiling dylib v0.0.3
[INFO] [stderr]    Compiling udev-dl v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:141:5
[INFO] [stdout]     |
[INFO] [stdout] 141 |     try!(f.write_str(self.kind.as_str()));
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:143:7
[INFO] [stdout]     |
[INFO] [stdout] 143 |       try!(f.write_str(" ("));
[INFO] [stdout]     |       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:144:7
[INFO] [stdout]     |
[INFO] [stdout] 144 |       try!(f.write_str(self.detail.as_ref()));
[INFO] [stdout]     |       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:145:7
[INFO] [stdout]     |
[INFO] [stdout] 145 |       try!(f.write_str(")"));
[INFO] [stdout]     |       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:39:21
[INFO] [stdout]     |
[INFO] [stdout]  39 |             let lib = try!(open_lib(&[$($lib_name),*]));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] ...
[INFO] [stdout] 178 | / udev_link! { Udev, ["libudev.so", "libudev.so.1"],
[INFO] [stdout] 179 | |     pub fn udev_ref(udev: *mut udev) -> *mut udev,
[INFO] [stdout] 180 | |     pub fn udev_unref(udev: *mut udev) -> *mut udev,
[INFO] [stdout] 181 | |     pub fn udev_new() -> *mut udev,
[INFO] [stdout] ...   |
[INFO] [stdout] 268 | |     pub fn udev_util_encode_string(str: *const c_char, str_enc: *mut c_char, len: size_t) -> c_int,
[INFO] [stdout] 269 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `udev_link` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:40:28
[INFO] [stdout]     |
[INFO] [stdout]  40 |             $(let $fn_name = try!(get_sym(&lib, stringify!($fn_name)));)*
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] ...
[INFO] [stdout] 178 | / udev_link! { Udev, ["libudev.so", "libudev.so.1"],
[INFO] [stdout] 179 | |     pub fn udev_ref(udev: *mut udev) -> *mut udev,
[INFO] [stdout] 180 | |     pub fn udev_unref(udev: *mut udev) -> *mut udev,
[INFO] [stdout] 181 | |     pub fn udev_new() -> *mut udev,
[INFO] [stdout] ...   |
[INFO] [stdout] 268 | |     pub fn udev_util_encode_string(str: *const c_char, str_enc: *mut c_char, len: size_t) -> c_int,
[INFO] [stdout] 269 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `udev_link` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.26s
[INFO] running `Command { std: "docker" "inspect" "12e9f59c7d35c0ba28f251cdc30952802d9d11b9428f8953ec24c90904cfb2d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12e9f59c7d35c0ba28f251cdc30952802d9d11b9428f8953ec24c90904cfb2d8", kill_on_drop: false }`
[INFO] [stdout] 12e9f59c7d35c0ba28f251cdc30952802d9d11b9428f8953ec24c90904cfb2d8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e3a6c065cc69374c94c488be4124313c22eafe7b04881bdc5b305ea657de6fb
[INFO] running `Command { std: "docker" "start" "-a" "9e3a6c065cc69374c94c488be4124313c22eafe7b04881bdc5b305ea657de6fb", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:141:5
[INFO] [stdout]     |
[INFO] [stdout] 141 |     try!(f.write_str(self.kind.as_str()));
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:143:7
[INFO] [stdout]     |
[INFO] [stdout] 143 |       try!(f.write_str(" ("));
[INFO] [stdout]     |       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling udev-dl v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:144:7
[INFO] [stdout]     |
[INFO] [stdout] 144 |       try!(f.write_str(self.detail.as_ref()));
[INFO] [stdout]     |       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:145:7
[INFO] [stdout]     |
[INFO] [stdout] 145 |       try!(f.write_str(")"));
[INFO] [stdout]     |       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:39:21
[INFO] [stdout]     |
[INFO] [stdout]  39 |             let lib = try!(open_lib(&[$($lib_name),*]));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] ...
[INFO] [stdout] 178 | / udev_link! { Udev, ["libudev.so", "libudev.so.1"],
[INFO] [stdout] 179 | |     pub fn udev_ref(udev: *mut udev) -> *mut udev,
[INFO] [stdout] 180 | |     pub fn udev_unref(udev: *mut udev) -> *mut udev,
[INFO] [stdout] 181 | |     pub fn udev_new() -> *mut udev,
[INFO] [stdout] ...   |
[INFO] [stdout] 268 | |     pub fn udev_util_encode_string(str: *const c_char, str_enc: *mut c_char, len: size_t) -> c_int,
[INFO] [stdout] 269 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `udev_link` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:40:28
[INFO] [stdout]     |
[INFO] [stdout]  40 |             $(let $fn_name = try!(get_sym(&lib, stringify!($fn_name)));)*
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] ...
[INFO] [stdout] 178 | / udev_link! { Udev, ["libudev.so", "libudev.so.1"],
[INFO] [stdout] 179 | |     pub fn udev_ref(udev: *mut udev) -> *mut udev,
[INFO] [stdout] 180 | |     pub fn udev_unref(udev: *mut udev) -> *mut udev,
[INFO] [stdout] 181 | |     pub fn udev_new() -> *mut udev,
[INFO] [stdout] ...   |
[INFO] [stdout] 268 | |     pub fn udev_util_encode_string(str: *const c_char, str_enc: *mut c_char, len: size_t) -> c_int,
[INFO] [stdout] 269 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `udev_link` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:141:5
[INFO] [stdout]     |
[INFO] [stdout] 141 |     try!(f.write_str(self.kind.as_str()));
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:143:7
[INFO] [stdout]     |
[INFO] [stdout] 143 |       try!(f.write_str(" ("));
[INFO] [stdout]     |       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:144:7
[INFO] [stdout]     |
[INFO] [stdout] 144 |       try!(f.write_str(self.detail.as_ref()));
[INFO] [stdout]     |       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:145:7
[INFO] [stdout]     |
[INFO] [stdout] 145 |       try!(f.write_str(")"));
[INFO] [stdout]     |       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:39:21
[INFO] [stdout]     |
[INFO] [stdout]  39 |             let lib = try!(open_lib(&[$($lib_name),*]));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] ...
[INFO] [stdout] 178 | / udev_link! { Udev, ["libudev.so", "libudev.so.1"],
[INFO] [stdout] 179 | |     pub fn udev_ref(udev: *mut udev) -> *mut udev,
[INFO] [stdout] 180 | |     pub fn udev_unref(udev: *mut udev) -> *mut udev,
[INFO] [stdout] 181 | |     pub fn udev_new() -> *mut udev,
[INFO] [stdout] ...   |
[INFO] [stdout] 268 | |     pub fn udev_util_encode_string(str: *const c_char, str_enc: *mut c_char, len: size_t) -> c_int,
[INFO] [stdout] 269 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `udev_link` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:40:28
[INFO] [stdout]     |
[INFO] [stdout]  40 |             $(let $fn_name = try!(get_sym(&lib, stringify!($fn_name)));)*
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] ...
[INFO] [stdout] 178 | / udev_link! { Udev, ["libudev.so", "libudev.so.1"],
[INFO] [stdout] 179 | |     pub fn udev_ref(udev: *mut udev) -> *mut udev,
[INFO] [stdout] 180 | |     pub fn udev_unref(udev: *mut udev) -> *mut udev,
[INFO] [stdout] 181 | |     pub fn udev_new() -> *mut udev,
[INFO] [stdout] ...   |
[INFO] [stdout] 268 | |     pub fn udev_util_encode_string(str: *const c_char, str_enc: *mut c_char, len: size_t) -> c_int,
[INFO] [stdout] 269 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `udev_link` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "9e3a6c065cc69374c94c488be4124313c22eafe7b04881bdc5b305ea657de6fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e3a6c065cc69374c94c488be4124313c22eafe7b04881bdc5b305ea657de6fb", kill_on_drop: false }`
[INFO] [stdout] 9e3a6c065cc69374c94c488be4124313c22eafe7b04881bdc5b305ea657de6fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e5da3ae56344b80b5d25f8af9fbb08985daa41a9353b98b69f462bd64fcfbd58
[INFO] running `Command { std: "docker" "start" "-a" "e5da3ae56344b80b5d25f8af9fbb08985daa41a9353b98b69f462bd64fcfbd58", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout] 
[INFO] [stderr]    --> src/lib.rs:141:5
[INFO] [stdout] running 0 tests
[INFO] [stderr]     |
[INFO] [stdout] 
[INFO] [stderr] 141 |     try!(f.write_str(self.kind.as_str()));
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]     |     ^^^
[INFO] [stdout] 
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:143:7
[INFO] [stderr]     |
[INFO] [stderr] 143 |       try!(f.write_str(" ("));
[INFO] [stderr]     |       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:144:7
[INFO] [stderr]     |
[INFO] [stderr] 144 |       try!(f.write_str(self.detail.as_ref()));
[INFO] [stderr]     |       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:145:7
[INFO] [stderr]     |
[INFO] [stderr] 145 |       try!(f.write_str(")"));
[INFO] [stderr]     |       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:39:21
[INFO] [stderr]     |
[INFO] [stderr]  39 |             let lib = try!(open_lib(&[$($lib_name),*]));
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] ...
[INFO] [stderr] 178 | / udev_link! { Udev, ["libudev.so", "libudev.so.1"],
[INFO] [stderr] 179 | |     pub fn udev_ref(udev: *mut udev) -> *mut udev,
[INFO] [stderr] 180 | |     pub fn udev_unref(udev: *mut udev) -> *mut udev,
[INFO] [stderr] 181 | |     pub fn udev_new() -> *mut udev,
[INFO] [stderr] ...   |
[INFO] [stderr] 268 | |     pub fn udev_util_encode_string(str: *const c_char, str_enc: *mut c_char, len: size_t) -> c_int,
[INFO] [stderr] 269 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in the macro `udev_link` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:40:28
[INFO] [stderr]     |
[INFO] [stderr]  40 |             $(let $fn_name = try!(get_sym(&lib, stringify!($fn_name)));)*
[INFO] [stderr]     |                              ^^^
[INFO] [stderr] ...
[INFO] [stderr] 178 | / udev_link! { Udev, ["libudev.so", "libudev.so.1"],
[INFO] [stderr] 179 | |     pub fn udev_ref(udev: *mut udev) -> *mut udev,
[INFO] [stderr] 180 | |     pub fn udev_unref(udev: *mut udev) -> *mut udev,
[INFO] [stderr] 181 | |     pub fn udev_new() -> *mut udev,
[INFO] [stderr] ...   |
[INFO] [stderr] 268 | |     pub fn udev_util_encode_string(str: *const c_char, str_enc: *mut c_char, len: size_t) -> c_int,
[INFO] [stderr] 269 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in the macro `udev_link` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `udev-dl` (lib) generated 6 warnings
[INFO] [stderr] warning: `udev-dl` (lib test) generated 6 warnings (6 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/udev_dl-a808440e5ace50b6)
[INFO] [stderr]    Doc-tests udev_dl
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e5da3ae56344b80b5d25f8af9fbb08985daa41a9353b98b69f462bd64fcfbd58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5da3ae56344b80b5d25f8af9fbb08985daa41a9353b98b69f462bd64fcfbd58", kill_on_drop: false }`
[INFO] [stdout] e5da3ae56344b80b5d25f8af9fbb08985daa41a9353b98b69f462bd64fcfbd58