[INFO] fetching crate corwake 0.1.0...
[INFO] testing corwake-0.1.0 against 1.100.0-beta.1+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate corwake 0.1.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate corwake 0.1.0
[INFO] finished tweaking crates.io crate corwake 0.1.0
[INFO] tweaked toml for crates.io crate corwake 0.1.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate corwake 0.1.0 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate corwake 0.1.0 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" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] c93a3687b571d56e1a52fd9454427331c3da2a5b4025f4b96126618ae526cae3
[INFO] running `Command { std: "docker" "start" "c93a3687b571d56e1a52fd9454427331c3da2a5b4025f4b96126618ae526cae3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c93a3687b571d56e1a52fd9454427331c3da2a5b4025f4b96126618ae526cae3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c93a3687b571d56e1a52fd9454427331c3da2a5b4025f4b96126618ae526cae3" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c93a3687b571d56e1a52fd9454427331c3da2a5b4025f4b96126618ae526cae3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c93a3687b571d56e1a52fd9454427331c3da2a5b4025f4b96126618ae526cae3" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling externref-macro v0.2.0
[INFO] [stderr]    Compiling externref v0.2.0
[INFO] [stderr]    Compiling corwake v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `w`
[INFO] [stdout]   --> src/lib.rs:69:13
[INFO] [stdout]    |
[INFO] [stdout] 69 |         let w = unsafe { core::task::Waker::new(p0, p1) };
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `core::task::RawWakerVTable`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:25:49
[INFO] [stdout]    |
[INFO] [stdout] 25 |             pub fn new_waker(p0: *const (), p1: &'static RawWakerVTable) -> Resource<Waker>;
[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]    = note: `#[warn(improper_ctypes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 4.36s
[INFO] running `Command { std: "docker" "inspect" "c93a3687b571d56e1a52fd9454427331c3da2a5b4025f4b96126618ae526cae3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c93a3687b571d56e1a52fd9454427331c3da2a5b4025f4b96126618ae526cae3" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stdout] warning: unused variable: `w`
[INFO] [stdout]   --> src/lib.rs:69:13
[INFO] [stdout]    |
[INFO] [stdout] 69 |         let w = unsafe { core::task::Waker::new(p0, p1) };
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `core::task::RawWakerVTable`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:25:49
[INFO] [stdout]    |
[INFO] [stdout] 25 |             pub fn new_waker(p0: *const (), p1: &'static RawWakerVTable) -> Resource<Waker>;
[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]    = note: `#[warn(improper_ctypes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling corwake v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `w`
[INFO] [stdout]   --> src/lib.rs:69:13
[INFO] [stdout]    |
[INFO] [stdout] 69 |         let w = unsafe { core::task::Waker::new(p0, p1) };
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `core::task::RawWakerVTable`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:25:49
[INFO] [stdout]    |
[INFO] [stdout] 25 |             pub fn new_waker(p0: *const (), p1: &'static RawWakerVTable) -> Resource<Waker>;
[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]    = note: `#[warn(improper_ctypes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note:  "cc" "-m64" "/opt/rustwide/target/release/build/corwake/4d741ae0b884d735/out/rustcBJ1B2V/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{libtest-*,libgetopts-*,librustc_std_workspace_std-*}.rlib" "/opt/rustwide/target/release/build/externref/93695b4f3d78b677/out/libexternref-93695b4f3d78b677.rlib" "<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/release/build/corwake/4d741ae0b884d735/out/rustcBJ1B2V/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" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/release/build/corwake/4d741ae0b884d735/out/corwake-4d741ae0b884d735" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-Wl,-O1" "-Wl,--strip-debug" "-nodefaultlibs"
[INFO] [stdout]   = note: some arguments are omitted. use `--verbose` to show all linker arguments
[INFO] [stdout]   = note: rust-lld: error: undefined symbol: new_waker
[INFO] [stdout]           >>> referenced by corwake.31379a5a52b56393-cgu.0
[INFO] [stdout]           >>>               /opt/rustwide/target/release/build/corwake/4d741ae0b884d735/out/corwake-4d741ae0b884d735.corwake.31379a5a52b56393-cgu.0.rcgu.o:(corwake::_::ffi::new_waker)
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `corwake` (lib test) due to 1 previous error; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "c93a3687b571d56e1a52fd9454427331c3da2a5b4025f4b96126618ae526cae3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c93a3687b571d56e1a52fd9454427331c3da2a5b4025f4b96126618ae526cae3", kill_on_drop: false }`
[INFO] [stdout] c93a3687b571d56e1a52fd9454427331c3da2a5b4025f4b96126618ae526cae3
