[INFO] cloning repository https://github.com/matt24smith/scrnsvr
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/matt24smith/scrnsvr" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatt24smith%2Fscrnsvr", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatt24smith%2Fscrnsvr'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a085c8d3d1bf02d520482907aeeb5fa913209333
[INFO] testing matt24smith/scrnsvr against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatt24smith%2Fscrnsvr" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/matt24smith/scrnsvr
[INFO] finished tweaking git repo https://github.com/matt24smith/scrnsvr
[INFO] tweaked toml for git repo https://github.com/matt24smith/scrnsvr written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/matt24smith/scrnsvr on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/matt24smith/scrnsvr already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.author
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a340c4e9f1983089bb2d8341eb2023dec6ed82c3cd96ff524f88afa60e596871
[INFO] running `Command { std: "docker" "start" "-a" "a340c4e9f1983089bb2d8341eb2023dec6ed82c3cd96ff524f88afa60e596871", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a340c4e9f1983089bb2d8341eb2023dec6ed82c3cd96ff524f88afa60e596871", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a340c4e9f1983089bb2d8341eb2023dec6ed82c3cd96ff524f88afa60e596871", kill_on_drop: false }`
[INFO] [stdout] a340c4e9f1983089bb2d8341eb2023dec6ed82c3cd96ff524f88afa60e596871
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a6b681a97b7fe80d55b5a648b581db2646f831624cc4733c56b2d67a51ac80a8
[INFO] running `Command { std: "docker" "start" "-a" "a6b681a97b7fe80d55b5a648b581db2646f831624cc4733c56b2d67a51ac80a8", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.author
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling scrnsvr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `extern` block uses type `CString`, which is not FFI-safe
[INFO] [stdout]   --> src/main.rs:16:26
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn XOpenDisplay(dpy: CString) -> *mut Display;
[INFO] [stdout]    |                          ^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider passing a `*const std::ffi::c_char` instead, and use `CStr::as_ptr()`
[INFO] [stdout]    = note: `CStr`/`CString` do not have a guaranteed layout
[INFO] [stdout]    = note: `#[warn(improper_ctypes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `Display`, which is not FFI-safe
[INFO] [stdout]   --> src/main.rs:16:38
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn XOpenDisplay(dpy: CString) -> *mut Display;
[INFO] [stdout]    |                                      ^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a member to this struct
[INFO] [stdout]    = note: this struct has no fields
[INFO] [stdout] note: the type is defined here
[INFO] [stdout]   --> src/main.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout]  9 | struct Display;
[INFO] [stdout]    | ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `Display`, which is not FFI-safe
[INFO] [stdout]   --> src/main.rs:17:27
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn XCloseDisplay(dpy: *mut Display);
[INFO] [stdout]    |                           ^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a member to this struct
[INFO] [stdout]    = note: this struct has no fields
[INFO] [stdout] note: the type is defined here
[INFO] [stdout]   --> src/main.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout]  9 | struct Display;
[INFO] [stdout]    | ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `XScreenSaverInfo`, which is not FFI-safe
[INFO] [stdout]   --> src/main.rs:18:35
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn XScreenSaverAllocInfo() -> *mut XScreenSaverInfo;
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a member to this struct
[INFO] [stdout]    = note: this struct has no fields
[INFO] [stdout] note: the type is defined here
[INFO] [stdout]   --> src/main.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct XScreenSaverInfo;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `XScreenSaverInfo`, which is not FFI-safe
[INFO] [stdout]   --> src/main.rs:19:20
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn XFree(info: *mut XScreenSaverInfo);
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a member to this struct
[INFO] [stdout]    = note: this struct has no fields
[INFO] [stdout] note: the type is defined here
[INFO] [stdout]   --> src/main.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct XScreenSaverInfo;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `Display`, which is not FFI-safe
[INFO] [stdout]   --> src/main.rs:23:25
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn check_timer(dpy: *mut Display, info: *mut XScreenSaverInfo) -> c_int;
[INFO] [stdout]    |                         ^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a member to this struct
[INFO] [stdout]    = note: this struct has no fields
[INFO] [stdout] note: the type is defined here
[INFO] [stdout]   --> src/main.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout]  9 | struct Display;
[INFO] [stdout]    | ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `XScreenSaverInfo`, which is not FFI-safe
[INFO] [stdout]   --> src/main.rs:23:45
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn check_timer(dpy: *mut Display, info: *mut XScreenSaverInfo) -> c_int;
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a member to this struct
[INFO] [stdout]    = note: this struct has no fields
[INFO] [stdout] note: the type is defined here
[INFO] [stdout]   --> src/main.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct XScreenSaverInfo;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note:  "cc" "-m64" "/opt/rustwide/target/debug/deps/rustcybt5z7/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bdynamic" "-lX11" "-Wl,-Bstatic" "-lsaver.a" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{libstd-*,libpanic_unwind-*,libobject-*,libmemchr-*,libaddr2line-*,libgimli-*,libcfg_if-*,librustc_demangle-*,libstd_detect-*,libhashbrown-*,librustc_std_workspace_alloc-*,libminiz_oxide-*,libadler2-*,libunwind-*,liblibc-*,librustc_std_workspace_core-*,liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-Wl,-Bdynamic" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-L" "/opt/rustwide/target/debug/deps/rustcybt5z7/raw-dylibs" "-B<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "/opt/rustwide/target/debug/build/scrnsvr-ffbb1042ba85e765/out" "-L" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/scrnsvr-655eddc3acda6257" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs" "/usr/lib/libXss.so" "/usr/lib/libX11.so"
[INFO] [stdout]   = note: some arguments are omitted. use `--verbose` to show all linker arguments
[INFO] [stdout]   = note: rust-lld: error: cannot open /usr/lib/libXss.so: No such file or directory
[INFO] [stdout]           rust-lld: error: cannot open /usr/lib/libX11.so: No such file or directory
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `scrnsvr` (bin "scrnsvr") due to 1 previous error; 7 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "a6b681a97b7fe80d55b5a648b581db2646f831624cc4733c56b2d67a51ac80a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6b681a97b7fe80d55b5a648b581db2646f831624cc4733c56b2d67a51ac80a8", kill_on_drop: false }`
[INFO] [stdout] a6b681a97b7fe80d55b5a648b581db2646f831624cc4733c56b2d67a51ac80a8