[INFO] fetching crate sharedlib 7.0.0...
[INFO] building sharedlib-7.0.0 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate sharedlib 7.0.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate sharedlib 7.0.0
[INFO] finished tweaking crates.io crate sharedlib 7.0.0
[INFO] tweaked toml for crates.io crate sharedlib 7.0.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate sharedlib 7.0.0 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 5 packages to latest compatible versions
[INFO] [stderr]       Adding error-chain v0.9.0 (available: v0.12.4)
[INFO] [stderr]       Adding lazy_static v0.2.11 (available: v1.5.0)
[INFO] [stderr]       Adding winapi v0.2.8 (available: v0.3.9)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 155578d98f3fd78b05284bf3f6e5d0226b3910d21d0fa7a690cff1fbcf29d65a
[INFO] running `Command { std: "docker" "start" "-a" "155578d98f3fd78b05284bf3f6e5d0226b3910d21d0fa7a690cff1fbcf29d65a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "155578d98f3fd78b05284bf3f6e5d0226b3910d21d0fa7a690cff1fbcf29d65a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "155578d98f3fd78b05284bf3f6e5d0226b3910d21d0fa7a690cff1fbcf29d65a", kill_on_drop: false }`
[INFO] [stdout] 155578d98f3fd78b05284bf3f6e5d0226b3910d21d0fa7a690cff1fbcf29d65a
[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=forbid" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b65dd76162a07fe9d4bf27ad9344c9a5a333c826989b711279875bb83224fb4e
[INFO] running `Command { std: "docker" "start" "-a" "b65dd76162a07fe9d4bf27ad9344c9a5a333c826989b711279875bb83224fb4e", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling sharedlib v7.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling error-chain v0.9.0
[INFO] [stdout] warning: unexpected `cfg` condition value: `bitrig`
[INFO] [stdout]   --> build.rs:14:11
[INFO] [stdout]    |
[INFO] [stdout] 14 |           target_os="bitrig",
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `target_os` are: `aix`, `amdhsa`, `android`, `cuda`, `cygwin`, `dragonfly`, `emscripten`, `espidf`, `freebsd`, `fuchsia`, `haiku`, `hermit`, `horizon`, `hurd`, `illumos`, `ios`, `l4re`, `linux`, `lynxos178`, `macos`, `managarm`, `netbsd`, `none`, `nto`, `nuttx`, `openbsd`, `psp`, `psx`, `redox`, `rtems`, `solaris`, `solid_asp3`, `teeos`, `trusty`, and `tvos` and 11 more
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]  --> src/os/unix/external.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | extern {
[INFO] [stdout]   | ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(missing_abi)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib_impl/lib.rs:36:21
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let inner = try!(LibUnsafe::new(path_to_lib));
[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_impl/lib.rs:83:26
[INFO] [stdout]    |
[INFO] [stdout] 83 |         let symbol_ptr = try!(self.inner.find_data::<T, TStr>(symbol));
[INFO] [stdout]    |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib_impl/lib.rs:129:20
[INFO] [stdout]     |
[INFO] [stdout] 129 |         let func = try!(self.inner.find_func::<T, TStr>(symbol));
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib_impl/lib_tracked.rs:39:26
[INFO] [stdout]    |
[INFO] [stdout] 39 |         let lib_unsafe = try!(LibUnsafe::new(path_to_lib));
[INFO] [stdout]    |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib_impl/lib_tracked.rs:96:26
[INFO] [stdout]    |
[INFO] [stdout] 96 |         let symbol_ptr = try!(lib.find_data::<T, TStr>(symbol));
[INFO] [stdout]    |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib_impl/lib_tracked.rs:150:20
[INFO] [stdout]     |
[INFO] [stdout] 150 |         let func = try!(lib.find_func::<T, TStr>(symbol));
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib_impl/lib_unsafe.rs:37:21
[INFO] [stdout]    |
[INFO] [stdout] 37 |         let inner = try!(InnerLib::new(path_to_lib));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib_impl/lib_unsafe.rs:132:33
[INFO] [stdout]     |
[INFO] [stdout] 132 |                 Some(symbol) => try!(self.inner.find::<u8, _>(symbol)),
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib_impl/lib_unsafe.rs:133:25
[INFO] [stdout]     |
[INFO] [stdout] 133 |                 None => try!(self.inner.find::<u8, _>(symbol)),
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]  --> src/util/error_mutex.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | / lazy_static! {
[INFO] [stdout] 4 | |     pub static ref ERROR_MUTEX: Mutex<()> = Mutex::new(());
[INFO] [stdout] 5 | | }
[INFO] [stdout]   | |_^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (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 0.72s
[INFO] running `Command { std: "docker" "inspect" "b65dd76162a07fe9d4bf27ad9344c9a5a333c826989b711279875bb83224fb4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b65dd76162a07fe9d4bf27ad9344c9a5a333c826989b711279875bb83224fb4e", kill_on_drop: false }`
[INFO] [stdout] b65dd76162a07fe9d4bf27ad9344c9a5a333c826989b711279875bb83224fb4e
[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=forbid" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4eaf2551f1372b7a0372c0fab3f906e69ee80836e0946200c68d412cb0e5c005
[INFO] running `Command { std: "docker" "start" "-a" "4eaf2551f1372b7a0372c0fab3f906e69ee80836e0946200c68d412cb0e5c005", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stdout] warning: unexpected `cfg` condition value: `bitrig`
[INFO] [stdout]   --> build.rs:14:11
[INFO] [stdout]    |
[INFO] [stdout] 14 |           target_os="bitrig",
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `target_os` are: `aix`, `amdhsa`, `android`, `cuda`, `cygwin`, `dragonfly`, `emscripten`, `espidf`, `freebsd`, `fuchsia`, `haiku`, `hermit`, `horizon`, `hurd`, `illumos`, `ios`, `l4re`, `linux`, `lynxos178`, `macos`, `managarm`, `netbsd`, `none`, `nto`, `nuttx`, `openbsd`, `psp`, `psx`, `redox`, `rtems`, `solaris`, `solid_asp3`, `teeos`, `trusty`, and `tvos` and 11 more
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling sharedlib v7.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]  --> src/os/unix/external.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | extern {
[INFO] [stdout]   | ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(missing_abi)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib_impl/lib.rs:36:21
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let inner = try!(LibUnsafe::new(path_to_lib));
[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_impl/lib.rs:83:26
[INFO] [stdout]    |
[INFO] [stdout] 83 |         let symbol_ptr = try!(self.inner.find_data::<T, TStr>(symbol));
[INFO] [stdout]    |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib_impl/lib.rs:129:20
[INFO] [stdout]     |
[INFO] [stdout] 129 |         let func = try!(self.inner.find_func::<T, TStr>(symbol));
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib_impl/lib_tracked.rs:39:26
[INFO] [stdout]    |
[INFO] [stdout] 39 |         let lib_unsafe = try!(LibUnsafe::new(path_to_lib));
[INFO] [stdout]    |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib_impl/lib_tracked.rs:96:26
[INFO] [stdout]    |
[INFO] [stdout] 96 |         let symbol_ptr = try!(lib.find_data::<T, TStr>(symbol));
[INFO] [stdout]    |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib_impl/lib_tracked.rs:150:20
[INFO] [stdout]     |
[INFO] [stdout] 150 |         let func = try!(lib.find_func::<T, TStr>(symbol));
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib_impl/lib_unsafe.rs:37:21
[INFO] [stdout]    |
[INFO] [stdout] 37 |         let inner = try!(InnerLib::new(path_to_lib));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib_impl/lib_unsafe.rs:132:33
[INFO] [stdout]     |
[INFO] [stdout] 132 |                 Some(symbol) => try!(self.inner.find::<u8, _>(symbol)),
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib_impl/lib_unsafe.rs:133:25
[INFO] [stdout]     |
[INFO] [stdout] 133 |                 None => try!(self.inner.find::<u8, _>(symbol)),
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]  --> src/util/error_mutex.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | / lazy_static! {
[INFO] [stdout] 4 | |     pub static ref ERROR_MUTEX: Mutex<()> = Mutex::new(());
[INFO] [stdout] 5 | | }
[INFO] [stdout]   | |_^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]  --> src/os/unix/external.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | extern {
[INFO] [stdout]   | ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(missing_abi)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib_impl/lib.rs:36:21
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let inner = try!(LibUnsafe::new(path_to_lib));
[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_impl/lib.rs:83:26
[INFO] [stdout]    |
[INFO] [stdout] 83 |         let symbol_ptr = try!(self.inner.find_data::<T, TStr>(symbol));
[INFO] [stdout]    |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib_impl/lib.rs:129:20
[INFO] [stdout]     |
[INFO] [stdout] 129 |         let func = try!(self.inner.find_func::<T, TStr>(symbol));
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib_impl/lib_tracked.rs:39:26
[INFO] [stdout]    |
[INFO] [stdout] 39 |         let lib_unsafe = try!(LibUnsafe::new(path_to_lib));
[INFO] [stdout]    |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib_impl/lib_tracked.rs:96:26
[INFO] [stdout]    |
[INFO] [stdout] 96 |         let symbol_ptr = try!(lib.find_data::<T, TStr>(symbol));
[INFO] [stdout]    |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib_impl/lib_tracked.rs:150:20
[INFO] [stdout]     |
[INFO] [stdout] 150 |         let func = try!(lib.find_func::<T, TStr>(symbol));
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib_impl/lib_unsafe.rs:37:21
[INFO] [stdout]    |
[INFO] [stdout] 37 |         let inner = try!(InnerLib::new(path_to_lib));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib_impl/lib_unsafe.rs:132:33
[INFO] [stdout]     |
[INFO] [stdout] 132 |                 Some(symbol) => try!(self.inner.find::<u8, _>(symbol)),
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib_impl/lib_unsafe.rs:133:25
[INFO] [stdout]     |
[INFO] [stdout] 133 |                 None => try!(self.inner.find::<u8, _>(symbol)),
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/test/unix/shared.rs:20:24
[INFO] [stdout]    |
[INFO] [stdout] 20 |         let ceil: Func<extern fn(f64) -> f64> = lib.find_func("ceil").unwrap();
[INFO] [stdout]    |                        ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/test/unix/shared.rs:29:24
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let ceil: Func<extern fn(f64) -> f64> = lib.find_func("ceil\0").unwrap();
[INFO] [stdout]    |                        ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]  --> src/util/error_mutex.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | / lazy_static! {
[INFO] [stdout] 4 | |     pub static ref ERROR_MUTEX: Mutex<()> = Mutex::new(());
[INFO] [stdout] 5 | | }
[INFO] [stdout]   | |_^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/test/shared.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |         mem::replace(dll._func.borrow_mut().deref_mut(), Some(add_u32s));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 51 |         let _ = mem::replace(dll._func.borrow_mut().deref_mut(), Some(add_u32s));
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "4eaf2551f1372b7a0372c0fab3f906e69ee80836e0946200c68d412cb0e5c005", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4eaf2551f1372b7a0372c0fab3f906e69ee80836e0946200c68d412cb0e5c005", kill_on_drop: false }`
[INFO] [stdout] 4eaf2551f1372b7a0372c0fab3f906e69ee80836e0946200c68d412cb0e5c005
