[INFO] fetching crate corwake 0.1.0...
[INFO] testing corwake-0.1.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate corwake 0.1.0 into /workspace/builds/worker-1-tc1/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-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate corwake 0.1.0 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded externref-macro v0.2.0
[INFO] [stderr]   Downloaded externref v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 75e26dc1f2100fd36c3dfa2054279444c98eec39b52756c9f5e080a68679f63c
[INFO] running `Command { std: "docker" "start" "-a" "75e26dc1f2100fd36c3dfa2054279444c98eec39b52756c9f5e080a68679f63c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "75e26dc1f2100fd36c3dfa2054279444c98eec39b52756c9f5e080a68679f63c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75e26dc1f2100fd36c3dfa2054279444c98eec39b52756c9f5e080a68679f63c", kill_on_drop: false }`
[INFO] [stdout] 75e26dc1f2100fd36c3dfa2054279444c98eec39b52756c9f5e080a68679f63c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bb065cfc6c41d7763714ebd5487b008221d8c064fc6192574cecc523ff6e05d8
[INFO] running `Command { std: "docker" "start" "-a" "bb065cfc6c41d7763714ebd5487b008221d8c064fc6192574cecc523ff6e05d8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling quote v1.0.40
[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 `dev` profile [unoptimized + debuginfo] target(s) in 5.72s
[INFO] running `Command { std: "docker" "inspect" "bb065cfc6c41d7763714ebd5487b008221d8c064fc6192574cecc523ff6e05d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb065cfc6c41d7763714ebd5487b008221d8c064fc6192574cecc523ff6e05d8", kill_on_drop: false }`
[INFO] [stdout] bb065cfc6c41d7763714ebd5487b008221d8c064fc6192574cecc523ff6e05d8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3af55eac071e93a7c700a359f1de688c8ce1af7b9e403d74b293ea0b62da2e76
[INFO] running `Command { std: "docker" "start" "-a" "3af55eac071e93a7c700a359f1de688c8ce1af7b9e403d74b293ea0b62da2e76", kill_on_drop: false }`
[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] 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" "/tmp/rustcLsVn4T/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/debug/deps/libexternref-46ec9ad9b267ee87.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" "/tmp/rustcLsVn4T/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/debug/deps/corwake-5378af8580475baa" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-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 lib.rs:19 (src/lib.rs:19)
[INFO] [stdout]           >>>               /opt/rustwide/target/debug/deps/corwake-5378af8580475baa.corwake.82a82b641afc5636-cgu.0.rcgu.o:(corwake::_::ffi::new_waker::h544e592d393dfba5)
[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" "3af55eac071e93a7c700a359f1de688c8ce1af7b9e403d74b293ea0b62da2e76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3af55eac071e93a7c700a359f1de688c8ce1af7b9e403d74b293ea0b62da2e76", kill_on_drop: false }`
[INFO] [stdout] 3af55eac071e93a7c700a359f1de688c8ce1af7b9e403d74b293ea0b62da2e76
