[INFO] crate ruru 0.9.3 is already in cache
[INFO] testing ruru-0.9.3 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate ruru 0.9.3 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate ruru 0.9.3 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate ruru 0.9.3
[INFO] finished tweaking crates.io crate ruru 0.9.3
[INFO] tweaked toml for crates.io crate ruru 0.9.3 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 96f95cc6b7b54d868a36f25b9811b6e8d303f258e2f9bc30423532667d5ece02
[INFO] running `"docker" "start" "-a" "96f95cc6b7b54d868a36f25b9811b6e8d303f258e2f9bc30423532667d5ece02"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling ruby-sys v0.2.20
[INFO] [stderr]    Compiling ruru v0.9.3 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/binding/class.rs:92:54
[INFO] [stderr]    |
[INFO] [stderr] 92 | pub fn wrap_data<T>(klass: Value, data: T, wrapper: &DataTypeWrapper<T>) -> Value {
[INFO] [stderr]    |                                                      ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn DataTypeWrapper<T>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/binding/class.rs:98:45
[INFO] [stderr]    |
[INFO] [stderr] 98 | pub fn get_data<T>(object: Value, wrapper: &DataTypeWrapper<T>) -> &mut T {
[INFO] [stderr]    |                                             ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn DataTypeWrapper<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/binding/thread.rs:17:39
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let fnbox = Box::new(func) as Box<FnOnce() -> R>;
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^ help: use `dyn`: `dyn FnOnce() -> R`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/binding/thread.rs:86:28
[INFO] [stderr]    |
[INFO] [stderr] 86 |     let mut fnbox: Box<Box<FnMut() -> R>> =
[INFO] [stderr]    |                            ^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> R`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/binding/thread.rs:87:51
[INFO] [stderr]    |
[INFO] [stderr] 87 |         unsafe { Box::from_raw(boxptr as *mut Box<FnMut() -> R>) };
[INFO] [stderr]    |                                                   ^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> R`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/binding/thread.rs:93:28
[INFO] [stderr]    |
[INFO] [stderr] 93 |     let mut fnbox: Box<Box<FnMut() -> *const c_void>> =
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> *const c_void`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/binding/thread.rs:94:51
[INFO] [stderr]    |
[INFO] [stderr] 94 |         unsafe { Box::from_raw(boxptr as *mut Box<FnMut() -> *const c_void>) };
[INFO] [stderr]    |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> *const c_void`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/binding/vm.rs:95:28
[INFO] [stderr]    |
[INFO] [stderr] 95 |     let mut fnbox: Box<Box<FnMut() -> *const c_void>> =
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> *const c_void`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/binding/vm.rs:96:51
[INFO] [stderr]    |
[INFO] [stderr] 96 |         unsafe { Box::from_raw(boxptr as *mut Box<FnMut() -> *const c_void>) };
[INFO] [stderr]    |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> *const c_void`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/class/class.rs:568:62
[INFO] [stderr]     |
[INFO] [stderr] 568 |     pub fn wrap_data<T, O: Object>(&self, data: T, wrapper: &DataTypeWrapper<T>) -> O {
[INFO] [stderr]     |                                                              ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn DataTypeWrapper<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/class/traits/object.rs:209:47
[INFO] [stderr]     |
[INFO] [stderr] 209 |     fn get_data<'a, T>(&'a self, wrapper: &'a DataTypeWrapper<T>) -> &mut T {
[INFO] [stderr]     |                                               ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn DataTypeWrapper<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/util.rs:58:46
[INFO] [stderr]    |
[INFO] [stderr] 58 |     let fnbox = Box::new(wrap_return) as Box<FnOnce() -> *const c_void>;
[INFO] [stderr]    |                                              ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnOnce() -> *const c_void`
[INFO] [stderr] 
[INFO] [stderr] warning: `#[inline]` is ignored on function prototypes
[INFO] [stderr]   --> src/class/traits/object.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 |     #[inline]
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/result.rs:43:25
[INFO] [stderr]    |
[INFO] [stderr] 43 |         write!(f, "{}", <Error as error::Error>::description(&self))
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 15 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.24s
[INFO] running `"docker" "inspect" "96f95cc6b7b54d868a36f25b9811b6e8d303f258e2f9bc30423532667d5ece02"`
[INFO] running `"docker" "rm" "-f" "96f95cc6b7b54d868a36f25b9811b6e8d303f258e2f9bc30423532667d5ece02"`
[INFO] [stdout] 96f95cc6b7b54d868a36f25b9811b6e8d303f258e2f9bc30423532667d5ece02
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 909ec59298177a52ce0db1052bec7b50e909166ae27bdedfb7fda7ddfa9dae23
[INFO] running `"docker" "start" "-a" "909ec59298177a52ce0db1052bec7b50e909166ae27bdedfb7fda7ddfa9dae23"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling ruru v0.9.3 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/binding/class.rs:92:54
[INFO] [stderr]    |
[INFO] [stderr] 92 | pub fn wrap_data<T>(klass: Value, data: T, wrapper: &DataTypeWrapper<T>) -> Value {
[INFO] [stderr]    |                                                      ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn DataTypeWrapper<T>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/binding/class.rs:98:45
[INFO] [stderr]    |
[INFO] [stderr] 98 | pub fn get_data<T>(object: Value, wrapper: &DataTypeWrapper<T>) -> &mut T {
[INFO] [stderr]    |                                             ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn DataTypeWrapper<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/binding/thread.rs:17:39
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let fnbox = Box::new(func) as Box<FnOnce() -> R>;
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^ help: use `dyn`: `dyn FnOnce() -> R`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/binding/thread.rs:86:28
[INFO] [stderr]    |
[INFO] [stderr] 86 |     let mut fnbox: Box<Box<FnMut() -> R>> =
[INFO] [stderr]    |                            ^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> R`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/binding/thread.rs:87:51
[INFO] [stderr]    |
[INFO] [stderr] 87 |         unsafe { Box::from_raw(boxptr as *mut Box<FnMut() -> R>) };
[INFO] [stderr]    |                                                   ^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> R`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/binding/thread.rs:93:28
[INFO] [stderr]    |
[INFO] [stderr] 93 |     let mut fnbox: Box<Box<FnMut() -> *const c_void>> =
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> *const c_void`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/binding/thread.rs:94:51
[INFO] [stderr]    |
[INFO] [stderr] 94 |         unsafe { Box::from_raw(boxptr as *mut Box<FnMut() -> *const c_void>) };
[INFO] [stderr]    |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> *const c_void`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/binding/vm.rs:95:28
[INFO] [stderr]    |
[INFO] [stderr] 95 |     let mut fnbox: Box<Box<FnMut() -> *const c_void>> =
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> *const c_void`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/binding/vm.rs:96:51
[INFO] [stderr]    |
[INFO] [stderr] 96 |         unsafe { Box::from_raw(boxptr as *mut Box<FnMut() -> *const c_void>) };
[INFO] [stderr]    |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> *const c_void`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/class/class.rs:568:62
[INFO] [stderr]     |
[INFO] [stderr] 568 |     pub fn wrap_data<T, O: Object>(&self, data: T, wrapper: &DataTypeWrapper<T>) -> O {
[INFO] [stderr]     |                                                              ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn DataTypeWrapper<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/class/traits/object.rs:209:47
[INFO] [stderr]     |
[INFO] [stderr] 209 |     fn get_data<'a, T>(&'a self, wrapper: &'a DataTypeWrapper<T>) -> &mut T {
[INFO] [stderr]     |                                               ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn DataTypeWrapper<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/util.rs:58:46
[INFO] [stderr]    |
[INFO] [stderr] 58 |     let fnbox = Box::new(wrap_return) as Box<FnOnce() -> *const c_void>;
[INFO] [stderr]    |                                              ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnOnce() -> *const c_void`
[INFO] [stderr] 
[INFO] [stderr] warning: `#[inline]` is ignored on function prototypes
[INFO] [stderr]   --> src/class/traits/object.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 |     #[inline]
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/result.rs:43:25
[INFO] [stderr]    |
[INFO] [stderr] 43 |         write!(f, "{}", <Error as error::Error>::description(&self))
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 15 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/binding/class.rs:92:54
[INFO] [stderr]    |
[INFO] [stderr] 92 | pub fn wrap_data<T>(klass: Value, data: T, wrapper: &DataTypeWrapper<T>) -> Value {
[INFO] [stderr]    |                                                      ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn DataTypeWrapper<T>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/binding/class.rs:98:45
[INFO] [stderr]    |
[INFO] [stderr] 98 | pub fn get_data<T>(object: Value, wrapper: &DataTypeWrapper<T>) -> &mut T {
[INFO] [stderr]    |                                             ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn DataTypeWrapper<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/binding/thread.rs:17:39
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let fnbox = Box::new(func) as Box<FnOnce() -> R>;
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^ help: use `dyn`: `dyn FnOnce() -> R`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/binding/thread.rs:86:28
[INFO] [stderr]    |
[INFO] [stderr] 86 |     let mut fnbox: Box<Box<FnMut() -> R>> =
[INFO] [stderr]    |                            ^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> R`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/binding/thread.rs:87:51
[INFO] [stderr]    |
[INFO] [stderr] 87 |         unsafe { Box::from_raw(boxptr as *mut Box<FnMut() -> R>) };
[INFO] [stderr]    |                                                   ^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> R`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/binding/thread.rs:93:28
[INFO] [stderr]    |
[INFO] [stderr] 93 |     let mut fnbox: Box<Box<FnMut() -> *const c_void>> =
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> *const c_void`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/binding/thread.rs:94:51
[INFO] [stderr]    |
[INFO] [stderr] 94 |         unsafe { Box::from_raw(boxptr as *mut Box<FnMut() -> *const c_void>) };
[INFO] [stderr]    |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> *const c_void`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/binding/vm.rs:95:28
[INFO] [stderr]    |
[INFO] [stderr] 95 |     let mut fnbox: Box<Box<FnMut() -> *const c_void>> =
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> *const c_void`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/binding/vm.rs:96:51
[INFO] [stderr]    |
[INFO] [stderr] 96 |         unsafe { Box::from_raw(boxptr as *mut Box<FnMut() -> *const c_void>) };
[INFO] [stderr]    |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> *const c_void`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/class/class.rs:568:62
[INFO] [stderr]     |
[INFO] [stderr] 568 |     pub fn wrap_data<T, O: Object>(&self, data: T, wrapper: &DataTypeWrapper<T>) -> O {
[INFO] [stderr]     |                                                              ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn DataTypeWrapper<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/class/traits/object.rs:209:47
[INFO] [stderr]     |
[INFO] [stderr] 209 |     fn get_data<'a, T>(&'a self, wrapper: &'a DataTypeWrapper<T>) -> &mut T {
[INFO] [stderr]     |                                               ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn DataTypeWrapper<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/util.rs:58:46
[INFO] [stderr]    |
[INFO] [stderr] 58 |     let fnbox = Box::new(wrap_return) as Box<FnOnce() -> *const c_void>;
[INFO] [stderr]    |                                              ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnOnce() -> *const c_void`
[INFO] [stderr] 
[INFO] [stderr] warning: `#[inline]` is ignored on function prototypes
[INFO] [stderr]   --> src/class/traits/object.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 |     #[inline]
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/result.rs:43:25
[INFO] [stderr]    |
[INFO] [stderr] 43 |         write!(f, "{}", <Error as error::Error>::description(&self))
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: linking with `cc` failed: exit code: 1
[INFO] [stderr]   |
[INFO] [stderr]   = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/ruru-bb3bf3206a2d2734.ruru.4gu3xe4i-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/ruru-bb3bf3206a2d2734.ruru.4gu3xe4i-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/ruru-bb3bf3206a2d2734.ruru.4gu3xe4i-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/ruru-bb3bf3206a2d2734.ruru.4gu3xe4i-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/ruru-bb3bf3206a2d2734.ruru.4gu3xe4i-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/ruru-bb3bf3206a2d2734.ruru.4gu3xe4i-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/ruru-bb3bf3206a2d2734.ruru.4gu3xe4i-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/ruru-bb3bf3206a2d2734.ruru.4gu3xe4i-cgu.7.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/ruru-bb3bf3206a2d2734" "/opt/rustwide/target/debug/deps/ruru-bb3bf3206a2d2734.41ijdg63gzgw5pbe.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/usr/lib" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libtest-0a07979da1fa7aa2.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libterm-171ede43b21d034c.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgetopts-ea69ac8b5a0936d1.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunicode_width-6be6d4d5d08eb152.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_std-c718480fe68c7cec.rlib" "/opt/rustwide/target/debug/deps/libruby_sys-867241862a978dc9.rlib" "/opt/rustwide/target/debug/deps/liblibc-2e17c5c99334ee98.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-ee0374dd376fa810.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-44f8eb3d0b2fad61.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-abc626f09920d361.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-546e83c8973f1a65.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-12768dfc68674934.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-e06867e4497f2ee8.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-cbc579f43f6df57b.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-7abd6d5a7ebf9a23.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-46423c7bc03bd327.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-fc3773ed7bc68f07.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-9cdc98176efd27e2.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-02d88502a763e06b.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-8cdc9d38dd6cd3ce.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-336f7d63e72901ef.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-57917b1be5233117.rlib" "-Wl,-Bdynamic" "-lruby-2.7" "-lutil" "-ldl" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-ldl" "-lutil"
[INFO] [stderr]   = note: /usr/bin/ld: cannot find -lruby-2.7
[INFO] [stderr]           collect2: error: ld returned 1 exit status
[INFO] [stderr]           
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error; 15 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `ruru`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "909ec59298177a52ce0db1052bec7b50e909166ae27bdedfb7fda7ddfa9dae23"`
[INFO] running `"docker" "rm" "-f" "909ec59298177a52ce0db1052bec7b50e909166ae27bdedfb7fda7ddfa9dae23"`
[INFO] [stdout] 909ec59298177a52ce0db1052bec7b50e909166ae27bdedfb7fda7ddfa9dae23