[INFO] crate zsplg 0.0.0-alpha2 is already in cache
[INFO] checking zsplg-0.0.0-alpha2 against try#6024cfef3a82f9a7688f07054f1650081bad3af5 for pr-74130
[INFO] extracting crate zsplg 0.0.0-alpha2 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate zsplg 0.0.0-alpha2 on toolchain 6024cfef3a82f9a7688f07054f1650081bad3af5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6024cfef3a82f9a7688f07054f1650081bad3af5" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate zsplg 0.0.0-alpha2
[INFO] finished tweaking crates.io crate zsplg 0.0.0-alpha2
[INFO] tweaked toml for crates.io crate zsplg 0.0.0-alpha2 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6024cfef3a82f9a7688f07054f1650081bad3af5" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6024cfef3a82f9a7688f07054f1650081bad3af5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+6024cfef3a82f9a7688f07054f1650081bad3af5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cc190d9a18d38b48a05d644a0616f53d5af35ffec8708893fea1643d3b376fbe
[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" "cc190d9a18d38b48a05d644a0616f53d5af35ffec8708893fea1643d3b376fbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc190d9a18d38b48a05d644a0616f53d5af35ffec8708893fea1643d3b376fbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc190d9a18d38b48a05d644a0616f53d5af35ffec8708893fea1643d3b376fbe", kill_on_drop: false }`
[INFO] [stdout] cc190d9a18d38b48a05d644a0616f53d5af35ffec8708893fea1643d3b376fbe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=forbid" "-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@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+6024cfef3a82f9a7688f07054f1650081bad3af5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9b91eca847e09083c81198c17735c71bda7d93902f7365f5f58eba3a16a7725c
[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" "9b91eca847e09083c81198c17735c71bda7d93902f7365f5f58eba3a16a7725c", kill_on_drop: false }`
[INFO] [stderr]    Compiling zsplg-core v0.0.0-alpha2
[INFO] [stderr]     Checking try-block v0.1.0
[INFO] [stderr]     Checking os_str_bytes v0.2.1
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]     Checking zsplg v0.0.0-alpha2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `extern` fn uses type `zsplg_core::FFIResult`, which is not FFI-safe
[INFO] [stdout]   --> src/ffi.rs:15:85
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub unsafe extern "C" fn zsplg_open(file: *const c_char, modname: *const c_char) -> FFIResult {
[INFO] [stdout]    |                                                                                     ^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `zsplg_core::Object`, which is not FFI-safe
[INFO] [stdout]   --> src/ffi.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |     parent: Object,
[INFO] [stdout]    |             ^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `zsplg_core::FFIResult`, which is not FFI-safe
[INFO] [stdout]   --> src/ffi.rs:37:6
[INFO] [stdout]    |
[INFO] [stdout] 37 | ) -> FFIResult {
[INFO] [stdout]    |      ^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `zsplg_core::Object`, which is not FFI-safe
[INFO] [stdout]   --> src/ffi.rs:58:10
[INFO] [stdout]    |
[INFO] [stdout] 58 |     obj: Object,
[INFO] [stdout]    |          ^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `zsplg_core::FFIResult`, which is not FFI-safe
[INFO] [stdout]   --> src/ffi.rs:62:6
[INFO] [stdout]    |
[INFO] [stdout] 62 | ) -> FFIResult {
[INFO] [stdout]    |      ^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `zsplg_core::Object`, which is not FFI-safe
[INFO] [stdout]   --> src/ffi.rs:91:48
[INFO] [stdout]    |
[INFO] [stdout] 91 | pub unsafe extern "C" fn zsplg_error_to_str(e: Object) -> Object {
[INFO] [stdout]    |                                                ^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `zsplg_core::Object`, which is not FFI-safe
[INFO] [stdout]   --> src/ffi.rs:91:59
[INFO] [stdout]    |
[INFO] [stdout] 91 | pub unsafe extern "C" fn zsplg_error_to_str(e: Object) -> Object {
[INFO] [stdout]    |                                                           ^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `zsplg_core::Object`, which is not FFI-safe
[INFO] [stdout]    --> src/ffi.rs:100:36
[INFO] [stdout]     |
[INFO] [stdout] 100 | pub extern "C" fn zsplg_is_null(w: Object) -> bool {
[INFO] [stdout]     |                                    ^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]     = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `zsplg_core::Object`, which is not FFI-safe
[INFO] [stdout]    --> src/ffi.rs:107:61
[INFO] [stdout]     |
[INFO] [stdout] 107 | pub unsafe extern "C" fn zsplg_new_str(x: *const c_char) -> Object {
[INFO] [stdout]     |                                                             ^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]     = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `zsplg_core::Object`, which is not FFI-safe
[INFO] [stdout]    --> src/ffi.rs:120:43
[INFO] [stdout]     |
[INFO] [stdout] 120 | pub unsafe extern "C" fn zsplg_get_str(w: Object) -> *const c_char {
[INFO] [stdout]     |                                           ^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]     = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `zsplg_core::Object`, which is not FFI-safe
[INFO] [stdout]    --> src/ffi.rs:133:43
[INFO] [stdout]     |
[INFO] [stdout] 133 | pub unsafe extern "C" fn zsplg_destroy(w: Object) -> bool {
[INFO] [stdout]     |                                           ^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]     = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `zsplg_core::FFIResult`, which is not FFI-safe
[INFO] [stdout]   --> src/ffi.rs:15:85
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub unsafe extern "C" fn zsplg_open(file: *const c_char, modname: *const c_char) -> FFIResult {
[INFO] [stdout]    |                                                                                     ^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `zsplg_core::Object`, which is not FFI-safe
[INFO] [stdout]   --> src/ffi.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |     parent: Object,
[INFO] [stdout]    |             ^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `zsplg_core::FFIResult`, which is not FFI-safe
[INFO] [stdout]   --> src/ffi.rs:37:6
[INFO] [stdout]    |
[INFO] [stdout] 37 | ) -> FFIResult {
[INFO] [stdout]    |      ^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `zsplg_core::Object`, which is not FFI-safe
[INFO] [stdout]   --> src/ffi.rs:58:10
[INFO] [stdout]    |
[INFO] [stdout] 58 |     obj: Object,
[INFO] [stdout]    |          ^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `zsplg_core::FFIResult`, which is not FFI-safe
[INFO] [stdout]   --> src/ffi.rs:62:6
[INFO] [stdout]    |
[INFO] [stdout] 62 | ) -> FFIResult {
[INFO] [stdout]    |      ^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `zsplg_core::Object`, which is not FFI-safe
[INFO] [stdout]   --> src/ffi.rs:91:48
[INFO] [stdout]    |
[INFO] [stdout] 91 | pub unsafe extern "C" fn zsplg_error_to_str(e: Object) -> Object {
[INFO] [stdout]    |                                                ^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `zsplg_core::Object`, which is not FFI-safe
[INFO] [stdout]   --> src/ffi.rs:91:59
[INFO] [stdout]    |
[INFO] [stdout] 91 | pub unsafe extern "C" fn zsplg_error_to_str(e: Object) -> Object {
[INFO] [stdout]    |                                                           ^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `zsplg_core::Object`, which is not FFI-safe
[INFO] [stdout]    --> src/ffi.rs:100:36
[INFO] [stdout]     |
[INFO] [stdout] 100 | pub extern "C" fn zsplg_is_null(w: Object) -> bool {
[INFO] [stdout]     |                                    ^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]     = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `zsplg_core::Object`, which is not FFI-safe
[INFO] [stdout]    --> src/ffi.rs:107:61
[INFO] [stdout]     |
[INFO] [stdout] 107 | pub unsafe extern "C" fn zsplg_new_str(x: *const c_char) -> Object {
[INFO] [stdout]     |                                                             ^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]     = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `zsplg_core::Object`, which is not FFI-safe
[INFO] [stdout]    --> src/ffi.rs:120:43
[INFO] [stdout]     |
[INFO] [stdout] 120 | pub unsafe extern "C" fn zsplg_get_str(w: Object) -> *const c_char {
[INFO] [stdout]     |                                           ^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]     = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `zsplg_core::Object`, which is not FFI-safe
[INFO] [stdout]    --> src/ffi.rs:133:43
[INFO] [stdout]     |
[INFO] [stdout] 133 | pub unsafe extern "C" fn zsplg_destroy(w: Object) -> bool {
[INFO] [stdout]     |                                           ^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]     = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.97s
[INFO] running `Command { std: "docker" "inspect" "9b91eca847e09083c81198c17735c71bda7d93902f7365f5f58eba3a16a7725c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b91eca847e09083c81198c17735c71bda7d93902f7365f5f58eba3a16a7725c", kill_on_drop: false }`
[INFO] [stdout] 9b91eca847e09083c81198c17735c71bda7d93902f7365f5f58eba3a16a7725c