[INFO] fetching crate zsplg 0.0.0-alpha2...
[INFO] checking zsplg-0.0.0-alpha2 against master#6526e5c772f2da07db745c94ca6bb0a591a39ba4 for pr-80920
[INFO] extracting crate zsplg 0.0.0-alpha2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate zsplg 0.0.0-alpha2 on toolchain 6526e5c772f2da07db745c94ca6bb0a591a39ba4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "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-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a32de75fbd29e5bd2a289f1ea368c9c26e80820fc0cca4960e31a3a1a1d035e8
[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" "a32de75fbd29e5bd2a289f1ea368c9c26e80820fc0cca4960e31a3a1a1d035e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a32de75fbd29e5bd2a289f1ea368c9c26e80820fc0cca4960e31a3a1a1d035e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a32de75fbd29e5bd2a289f1ea368c9c26e80820fc0cca4960e31a3a1a1d035e8", kill_on_drop: false }`
[INFO] [stdout] a32de75fbd29e5bd2a289f1ea368c9c26e80820fc0cca4960e31a3a1a1d035e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6f291b41c7e8c19c6b2962ff4b223f43bb423d0f8db5b7b0562597a0542947c0
[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" "6f291b41c7e8c19c6b2962ff4b223f43bb423d0f8db5b7b0562597a0542947c0", kill_on_drop: false }`
[INFO] [stderr]    Compiling zsplg-core v0.0.0-alpha2
[INFO] [stderr]     Checking os_str_bytes v0.2.1
[INFO] [stderr]     Checking try-block v0.1.0
[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 `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: `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] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.52s
[INFO] running `Command { std: "docker" "inspect" "6f291b41c7e8c19c6b2962ff4b223f43bb423d0f8db5b7b0562597a0542947c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f291b41c7e8c19c6b2962ff4b223f43bb423d0f8db5b7b0562597a0542947c0", kill_on_drop: false }`
[INFO] [stdout] 6f291b41c7e8c19c6b2962ff4b223f43bb423d0f8db5b7b0562597a0542947c0