[INFO] fetching crate asyncex 0.0.1...
[INFO] checking asyncex-0.0.1 against try#264a7c4a1c917c83d13895a31231f9d93c7b67e1 for pr-132289
[INFO] extracting crate asyncex 0.0.1 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate asyncex 0.0.1 on toolchain 264a7c4a1c917c83d13895a31231f9d93c7b67e1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+264a7c4a1c917c83d13895a31231f9d93c7b67e1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate asyncex 0.0.1
[INFO] finished tweaking crates.io crate asyncex 0.0.1
[INFO] tweaked toml for crates.io crate asyncex 0.0.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+264a7c4a1c917c83d13895a31231f9d93c7b67e1" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 97 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+264a7c4a1c917c83d13895a31231f9d93c7b67e1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+264a7c4a1c917c83d13895a31231f9d93c7b67e1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bc25b29416ba72964dd83f3f7d12b4c91d635225df9284ae855a99b1db17b80d
[INFO] running `Command { std: "docker" "start" "-a" "bc25b29416ba72964dd83f3f7d12b4c91d635225df9284ae855a99b1db17b80d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc25b29416ba72964dd83f3f7d12b4c91d635225df9284ae855a99b1db17b80d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc25b29416ba72964dd83f3f7d12b4c91d635225df9284ae855a99b1db17b80d", kill_on_drop: false }`
[INFO] [stdout] bc25b29416ba72964dd83f3f7d12b4c91d635225df9284ae855a99b1db17b80d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+264a7c4a1c917c83d13895a31231f9d93c7b67e1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 762fc892361e0342455ca1a567ac303db7242f8971cd81e7d3203989527484b0
[INFO] running `Command { std: "docker" "start" "-a" "762fc892361e0342455ca1a567ac303db7242f8971cd81e7d3203989527484b0", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]     Checking funty v3.0.0-rc2
[INFO] [stderr]     Checking abs_mm v0.1.0
[INFO] [stderr]     Checking anstyle-parse v0.2.6
[INFO] [stderr]     Checking colorchoice v1.0.3
[INFO] [stderr]     Checking anstyle-query v1.1.2
[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]     Checking anstyle v1.0.9
[INFO] [stderr]    Compiling syn v2.0.85
[INFO] [stderr]     Checking regex-automata v0.4.8
[INFO] [stderr]     Checking fastrand v2.1.1
[INFO] [stderr]     Checking core_malloc v0.1.0
[INFO] [stderr]     Checking anstream v0.6.17
[INFO] [stderr]     Checking futures-lite v2.3.0
[INFO] [stderr]     Checking concurrent-queue v2.5.0
[INFO] [stderr]     Checking atomex v0.1.0
[INFO] [stderr]     Checking event-listener v5.3.1
[INFO] [stderr]     Checking event-listener-strategy v0.5.2
[INFO] [stderr]     Checking async-channel v2.3.1
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking env_filter v0.1.2
[INFO] [stderr]     Checking env_logger v0.11.5
[INFO] [stderr]    Compiling pin-project-internal v1.1.7
[INFO] [stderr]    Compiling tokio-macros v2.4.0
[INFO] [stderr]     Checking tokio v1.41.0
[INFO] [stderr]     Checking pin-project v1.1.7
[INFO] [stderr]     Checking abs_sync v0.1.0
[INFO] [stderr]     Checking atomic_sync v0.1.0
[INFO] [stderr]     Checking pincol v0.1.1
[INFO] [stderr]     Checking mm_ptr v0.1.0
[INFO] [stderr]     Checking asyncex v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `mem::ManuallyDrop`
[INFO] [stdout]  --> src/rwlock/writer_.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     mem::ManuallyDrop,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_upgraded_writer_ctx` and `try_downgrade_exclusive_to_readonly` are never used
[INFO] [stdout]    --> src/rwlock/contexts_.rs:142:12
[INFO] [stdout]     |
[INFO] [stdout] 86  | / impl<O> WaitCtx<O>
[INFO] [stdout] 87  | | where
[INFO] [stdout] 88  | |     O: TrCmpxchOrderings,
[INFO] [stdout]     | |_________________________- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 142 |       pub fn is_upgraded_writer_ctx(&self) -> bool {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 169 |       pub fn try_downgrade_exclusive_to_readonly(&self) -> bool {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `expect_ctx_type_exclusive` is never used
[INFO] [stdout]    --> src/rwlock/contexts_.rs:233:14
[INFO] [stdout]     |
[INFO] [stdout] 202 | impl CtxStConf {
[INFO] [stdout]     | -------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 233 |     const fn expect_ctx_type_exclusive(s: StVal) -> bool {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `try_downgrade_exclusive_to_readonly` is never used
[INFO] [stdout]    --> src/rwlock/contexts_.rs:389:12
[INFO] [stdout]     |
[INFO] [stdout] 314 | impl<O: TrCmpxchOrderings> CtxState<O> {
[INFO] [stdout]     | -------------------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 389 |     pub fn try_downgrade_exclusive_to_readonly(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `downgrade_writer_to_reader_` is never used
[INFO] [stdout]    --> src/rwlock/impl_.rs:565:19
[INFO] [stdout]     |
[INFO] [stdout] 320 | / impl<'a, T, O> Acquire<'a, T, O>
[INFO] [stdout] 321 | | where
[INFO] [stdout] 322 | |     T: 'a + ?Sized,
[INFO] [stdout] 323 | |     O: TrCmpxchOrderings,
[INFO] [stdout]     | |_________________________- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 565 |       pub(super) fn downgrade_writer_to_reader_(self: Pin<&mut Self>) {
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `expect_lock_released` is never used
[INFO] [stdout]    --> src/rwlock/impl_.rs:702:14
[INFO] [stdout]     |
[INFO] [stdout] 692 | impl<O: TrCmpxchOrderings> RwLockState<O> {
[INFO] [stdout]     | ----------------------------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 702 |     const fn expect_lock_released(s: RwStVal) -> bool {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Upg` is never constructed
[INFO] [stdout]   --> src/rwlock/writer_.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | enum WGuardCtx<'a, 'g, T, O>
[INFO] [stdout]    |      --------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 36 |     Upg(NonNull<Upgrade<'a, 'g, T, O>>),
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `upgrade_pinned_` is never used
[INFO] [stdout]   --> src/rwlock/writer_.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 39 | / impl<'a, 'g, T, O> WGuardCtx<'a, 'g, T, O>
[INFO] [stdout] 40 | | where
[INFO] [stdout] 41 | |     T: ?Sized,
[INFO] [stdout] 42 | |     O: TrCmpxchOrderings,
[INFO] [stdout]    | |_________________________- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 68 |       pub fn upgrade_pinned_(
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_upgrade` is never used
[INFO] [stdout]    --> src/rwlock/writer_.rs:115:19
[INFO] [stdout]     |
[INFO] [stdout] 102 | / impl<'a, 'g, T, O> WriterGuard<'a, 'g, T, O>
[INFO] [stdout] 103 | | where
[INFO] [stdout] 104 | |     T: ?Sized,
[INFO] [stdout] 105 | |     O: TrCmpxchOrderings,
[INFO] [stdout]     | |_________________________- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 115 |       pub(super) fn from_upgrade<'u>(
[INFO] [stdout]     |                     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `mem::ManuallyDrop`
[INFO] [stdout]  --> src/rwlock/writer_.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     mem::ManuallyDrop,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_upgraded_writer_ctx` and `try_downgrade_exclusive_to_readonly` are never used
[INFO] [stdout]    --> src/rwlock/contexts_.rs:142:12
[INFO] [stdout]     |
[INFO] [stdout] 86  | / impl<O> WaitCtx<O>
[INFO] [stdout] 87  | | where
[INFO] [stdout] 88  | |     O: TrCmpxchOrderings,
[INFO] [stdout]     | |_________________________- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 142 |       pub fn is_upgraded_writer_ctx(&self) -> bool {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 169 |       pub fn try_downgrade_exclusive_to_readonly(&self) -> bool {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `expect_ctx_type_exclusive` is never used
[INFO] [stdout]    --> src/rwlock/contexts_.rs:233:14
[INFO] [stdout]     |
[INFO] [stdout] 202 | impl CtxStConf {
[INFO] [stdout]     | -------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 233 |     const fn expect_ctx_type_exclusive(s: StVal) -> bool {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `try_downgrade_exclusive_to_readonly` is never used
[INFO] [stdout]    --> src/rwlock/contexts_.rs:389:12
[INFO] [stdout]     |
[INFO] [stdout] 314 | impl<O: TrCmpxchOrderings> CtxState<O> {
[INFO] [stdout]     | -------------------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 389 |     pub fn try_downgrade_exclusive_to_readonly(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `downgrade_writer_to_reader_` is never used
[INFO] [stdout]    --> src/rwlock/impl_.rs:565:19
[INFO] [stdout]     |
[INFO] [stdout] 320 | / impl<'a, T, O> Acquire<'a, T, O>
[INFO] [stdout] 321 | | where
[INFO] [stdout] 322 | |     T: 'a + ?Sized,
[INFO] [stdout] 323 | |     O: TrCmpxchOrderings,
[INFO] [stdout]     | |_________________________- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 565 |       pub(super) fn downgrade_writer_to_reader_(self: Pin<&mut Self>) {
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `expect_lock_released` is never used
[INFO] [stdout]    --> src/rwlock/impl_.rs:702:14
[INFO] [stdout]     |
[INFO] [stdout] 692 | impl<O: TrCmpxchOrderings> RwLockState<O> {
[INFO] [stdout]     | ----------------------------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 702 |     const fn expect_lock_released(s: RwStVal) -> bool {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Upg` is never constructed
[INFO] [stdout]   --> src/rwlock/writer_.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | enum WGuardCtx<'a, 'g, T, O>
[INFO] [stdout]    |      --------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 36 |     Upg(NonNull<Upgrade<'a, 'g, T, O>>),
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `upgrade_pinned_` is never used
[INFO] [stdout]   --> src/rwlock/writer_.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 39 | / impl<'a, 'g, T, O> WGuardCtx<'a, 'g, T, O>
[INFO] [stdout] 40 | | where
[INFO] [stdout] 41 | |     T: ?Sized,
[INFO] [stdout] 42 | |     O: TrCmpxchOrderings,
[INFO] [stdout]    | |_________________________- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 68 |       pub fn upgrade_pinned_(
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_upgrade` is never used
[INFO] [stdout]    --> src/rwlock/writer_.rs:115:19
[INFO] [stdout]     |
[INFO] [stdout] 102 | / impl<'a, 'g, T, O> WriterGuard<'a, 'g, T, O>
[INFO] [stdout] 103 | | where
[INFO] [stdout] 104 | |     T: ?Sized,
[INFO] [stdout] 105 | |     O: TrCmpxchOrderings,
[INFO] [stdout]     | |_________________________- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 115 |       pub(super) fn from_upgrade<'u>(
[INFO] [stdout]     |                     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.01s
[INFO] running `Command { std: "docker" "inspect" "762fc892361e0342455ca1a567ac303db7242f8971cd81e7d3203989527484b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "762fc892361e0342455ca1a567ac303db7242f8971cd81e7d3203989527484b0", kill_on_drop: false }`
[INFO] [stdout] 762fc892361e0342455ca1a567ac303db7242f8971cd81e7d3203989527484b0
