[INFO] fetching crate zsplg 0.0.0-alpha2...
[INFO] testing zsplg-0.0.0-alpha2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate zsplg 0.0.0-alpha2 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate zsplg 0.0.0-alpha2 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d6526e7dae9251e347b8e79281e8a18caf3f685a9fc6bdae9e5623b9a2646f56
[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" "d6526e7dae9251e347b8e79281e8a18caf3f685a9fc6bdae9e5623b9a2646f56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d6526e7dae9251e347b8e79281e8a18caf3f685a9fc6bdae9e5623b9a2646f56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6526e7dae9251e347b8e79281e8a18caf3f685a9fc6bdae9e5623b9a2646f56", kill_on_drop: false }`
[INFO] [stdout] d6526e7dae9251e347b8e79281e8a18caf3f685a9fc6bdae9e5623b9a2646f56
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 19a2a53f1c1e6072c088df42b698b8e937b0db8d9a09072bc4f778d829a8772c
[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" "19a2a53f1c1e6072c088df42b698b8e937b0db8d9a09072bc4f778d829a8772c", kill_on_drop: false }`
[INFO] [stderr]    Compiling zsplg-core v0.0.0-alpha2
[INFO] [stderr]    Compiling os_str_bytes v0.2.1
[INFO] [stderr]    Compiling try-block v0.1.0
[INFO] [stderr]    Compiling zsplg v0.0.0-alpha2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `extern` fn uses type `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 `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 `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 `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 `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 `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 `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 `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 `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 `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 `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 2.14s
[INFO] running `Command { std: "docker" "inspect" "19a2a53f1c1e6072c088df42b698b8e937b0db8d9a09072bc4f778d829a8772c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19a2a53f1c1e6072c088df42b698b8e937b0db8d9a09072bc4f778d829a8772c", kill_on_drop: false }`
[INFO] [stdout] 19a2a53f1c1e6072c088df42b698b8e937b0db8d9a09072bc4f778d829a8772c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 48586d075a6517117dc020e2f122b6372e71137264d8298a70d6a4f7c0931b4e
[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" "48586d075a6517117dc020e2f122b6372e71137264d8298a70d6a4f7c0931b4e", kill_on_drop: false }`
[INFO] [stdout] warning: `extern` fn uses type `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 `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 `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 `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 `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 `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 `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 `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 `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 `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 `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]    Compiling zsplg v0.0.0-alpha2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `extern` fn uses type `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 `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 `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 `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 `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 `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 `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 `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 `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 `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 `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 test [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "48586d075a6517117dc020e2f122b6372e71137264d8298a70d6a4f7c0931b4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48586d075a6517117dc020e2f122b6372e71137264d8298a70d6a4f7c0931b4e", kill_on_drop: false }`
[INFO] [stdout] 48586d075a6517117dc020e2f122b6372e71137264d8298a70d6a4f7c0931b4e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2253af52676016536159578af3084bec69eefadd8ca1dd9a3d5f4f03374b3631
[INFO] running `Command { std: "docker" "start" "-a" "2253af52676016536159578af3084bec69eefadd8ca1dd9a3d5f4f03374b3631", kill_on_drop: false }`
[INFO] [stderr] warning: `extern` fn uses type `FFIResult`, which is not FFI-safe
[INFO] [stderr]   --> src/ffi.rs:15:85
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub unsafe extern "C" fn zsplg_open(file: *const c_char, modname: *const c_char) -> FFIResult {
[INFO] [stderr]    |                                                                                     ^^^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `Object`, which is not FFI-safe
[INFO] [stderr]   --> src/ffi.rs:34:13
[INFO] [stderr]    |
[INFO] [stderr] 34 |     parent: Object,
[INFO] [stderr]    |             ^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `FFIResult`, which is not FFI-safe
[INFO] [stderr]   --> src/ffi.rs:37:6
[INFO] [stderr]    |
[INFO] [stderr] 37 | ) -> FFIResult {
[INFO] [stderr]    |      ^^^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `Object`, which is not FFI-safe
[INFO] [stderr]   --> src/ffi.rs:58:10
[INFO] [stderr]    |
[INFO] [stderr] 58 |     obj: Object,
[INFO] [stderr]    |          ^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `FFIResult`, which is not FFI-safe
[INFO] [stderr]   --> src/ffi.rs:62:6
[INFO] [stderr]    |
[INFO] [stderr] 62 | ) -> FFIResult {
[INFO] [stderr]    |      ^^^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `Object`, which is not FFI-safe
[INFO] [stderr]   --> src/ffi.rs:91:48
[INFO] [stderr]    |
[INFO] [stderr] 91 | pub unsafe extern "C" fn zsplg_error_to_str(e: Object) -> Object {
[INFO] [stderr]    |                                                ^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `Object`, which is not FFI-safe
[INFO] [stderr]   --> src/ffi.rs:91:59
[INFO] [stderr]    |
[INFO] [stderr] 91 | pub unsafe extern "C" fn zsplg_error_to_str(e: Object) -> Object {
[INFO] [stderr]    |                                                           ^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `Object`, which is not FFI-safe
[INFO] [stderr]    --> src/ffi.rs:100:36
[INFO] [stderr]     |
[INFO] [stderr] 100 | pub extern "C" fn zsplg_is_null(w: Object) -> bool {
[INFO] [stderr]     |                                    ^^^^^^ not FFI-safe
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]     = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `Object`, which is not FFI-safe
[INFO] [stderr]    --> src/ffi.rs:107:61
[INFO] [stderr]     |
[INFO] [stderr] 107 | pub unsafe extern "C" fn zsplg_new_str(x: *const c_char) -> Object {
[INFO] [stderr]     |                                                             ^^^^^^ not FFI-safe
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]     = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `Object`, which is not FFI-safe
[INFO] [stderr]    --> src/ffi.rs:120:43
[INFO] [stderr]     |
[INFO] [stderr] 120 | pub unsafe extern "C" fn zsplg_get_str(w: Object) -> *const c_char {
[INFO] [stderr]     |                                           ^^^^^^ not FFI-safe
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]     = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `Object`, which is not FFI-safe
[INFO] [stderr]    --> src/ffi.rs:133:43
[INFO] [stderr]     |
[INFO] [stderr] 133 | pub unsafe extern "C" fn zsplg_destroy(w: Object) -> bool {
[INFO] [stderr]     |                                           ^^^^^^ not FFI-safe
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]     = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: `zsplg` (lib) generated 11 warnings
[INFO] [stderr] warning: `zsplg` (lib test) generated 11 warnings (11 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/zsplg-b6cb2ef45984c6a9)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test ffi::tests::strings ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests zsplg
[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" "2253af52676016536159578af3084bec69eefadd8ca1dd9a3d5f4f03374b3631", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2253af52676016536159578af3084bec69eefadd8ca1dd9a3d5f4f03374b3631", kill_on_drop: false }`
[INFO] [stdout] 2253af52676016536159578af3084bec69eefadd8ca1dd9a3d5f4f03374b3631