[INFO] fetching crate kay 0.5.1...
[INFO] checking kay-0.5.1 against master#af3c6e733a40e671550e0f0f5aeecaa13772ba56 for pr-74989
[INFO] extracting crate kay 0.5.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate kay 0.5.1 on toolchain af3c6e733a40e671550e0f0f5aeecaa13772ba56
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate kay 0.5.1
[INFO] finished tweaking crates.io crate kay 0.5.1
[INFO] tweaked toml for crates.io crate kay 0.5.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 16ae31596fc05b3e29a70a73e71d6b844d66155a313ad4599f3d49a037473e2a
[INFO] running `Command { std: "docker" "start" "-a" "16ae31596fc05b3e29a70a73e71d6b844d66155a313ad4599f3d49a037473e2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "16ae31596fc05b3e29a70a73e71d6b844d66155a313ad4599f3d49a037473e2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16ae31596fc05b3e29a70a73e71d6b844d66155a313ad4599f3d49a037473e2a", kill_on_drop: false }`
[INFO] [stdout] 16ae31596fc05b3e29a70a73e71d6b844d66155a313ad4599f3d49a037473e2a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ce6701db39406bc31addc11d26db42efb640572f53225d7a3a32759e32b185ef
[INFO] running `Command { std: "docker" "start" "-a" "ce6701db39406bc31addc11d26db42efb640572f53225d7a3a32759e32b185ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking hamming v0.1.3
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking primal-estimate v0.2.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking sha1 v0.4.0
[INFO] [stderr]     Checking simple_allocator_trait v0.1.0
[INFO] [stderr]     Checking utf-8 v0.7.5
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]    Compiling compact_macros v0.1.0
[INFO] [stderr]     Checking primal-bit v0.2.4
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking primal-sieve v0.2.9
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking chunky v0.3.7
[INFO] [stderr]     Checking input_buffer v0.1.1
[INFO] [stderr]     Checking tungstenite v0.5.4
[INFO] [stderr]     Checking primal-check v0.2.3
[INFO] [stderr]     Checking primal v0.2.3
[INFO] [stderr]     Checking compact v0.2.16
[INFO] [stderr]     Checking kay v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]   --> src/lib.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | #![feature(specialization)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]    = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]   --> src/lib.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | #![feature(specialization)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]    = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/lib.rs:47:34
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let mut items: [_; $n] = ::std::mem::uninitialized();
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/actor_system.rs:49:42
[INFO] [stdout]    |
[INFO] [stdout] 49 |             trait_implementors: unsafe { make_array!(MAX_RECIPIENT_TYPES, |_| None) },
[INFO] [stdout]    |                                          ------------------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/lib.rs:47:34
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let mut items: [_; $n] = ::std::mem::uninitialized();
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/actor_system.rs:52:31
[INFO] [stdout]    |
[INFO] [stdout] 52 |             classes: unsafe { make_array!(MAX_RECIPIENT_TYPES, |_| None) },
[INFO] [stdout]    |                               ------------------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/lib.rs:47:34
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let mut items: [_; $n] = ::std::mem::uninitialized();
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/class/mod.rs:43:40
[INFO] [stdout]    |
[INFO] [stdout] 43 |             message_handlers: unsafe { make_array!(MAX_MESSAGE_TYPES, |_| MessageHandler::Unassigned) },
[INFO] [stdout]    |                                        -------------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/lib.rs:47:34
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let mut items: [_; $n] = ::std::mem::uninitialized();
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/actor_system.rs:49:42
[INFO] [stdout]    |
[INFO] [stdout] 49 |             trait_implementors: unsafe { make_array!(MAX_RECIPIENT_TYPES, |_| None) },
[INFO] [stdout]    |                                          ------------------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/lib.rs:47:34
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let mut items: [_; $n] = ::std::mem::uninitialized();
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/actor_system.rs:52:31
[INFO] [stdout]    |
[INFO] [stdout] 52 |             classes: unsafe { make_array!(MAX_RECIPIENT_TYPES, |_| None) },
[INFO] [stdout]    |                               ------------------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/lib.rs:47:34
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let mut items: [_; $n] = ::std::mem::uninitialized();
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/class/mod.rs:43:40
[INFO] [stdout]    |
[INFO] [stdout] 43 |             message_handlers: unsafe { make_array!(MAX_MESSAGE_TYPES, |_| MessageHandler::Unassigned) },
[INFO] [stdout]    |                                        -------------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/class/mod.rs:41:26
[INFO] [stdout]    |
[INFO] [stdout] 41 |         let actor_name = unsafe { ::std::intrinsics::type_name::<A>() };
[INFO] [stdout]    |                          ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/type_registry.rs:50:23
[INFO] [stdout]    |
[INFO] [stdout] 50 |         let long_id = unsafe { type_id::<T>() };
[INFO] [stdout]    |                       ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/type_registry.rs:54:31
[INFO] [stdout]    |
[INFO] [stdout] 54 |             .insert(short_id, unsafe { type_name::<T>() }.into());
[INFO] [stdout]    |                               ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/type_registry.rs:60:62
[INFO] [stdout]    |
[INFO] [stdout] 60 |         if let Some(&short_id) = self.long_to_short_ids.get(&unsafe { type_id::<T>() }) {
[INFO] [stdout]    |                                                              ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/type_registry.rs:63:40
[INFO] [stdout]    |
[INFO] [stdout] 63 |             panic!("{:?} not known.", &unsafe { type_name::<T>() })
[INFO] [stdout]    |                                        ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/type_registry.rs:69:19
[INFO] [stdout]    |
[INFO] [stdout] 69 |             .get(&unsafe { type_id::<T>() })
[INFO] [stdout]    |                   ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a struct
[INFO] [stdout]   --> src/tuning.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout] 1  | pub struct Tuning {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 | #![warn(missing_docs)]
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a struct field
[INFO] [stdout]  --> src/tuning.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     pub instance_chunk_size: usize,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a struct field
[INFO] [stdout]  --> src/tuning.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     pub instance_entry_chunk_size: usize,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a struct field
[INFO] [stdout]  --> src/tuning.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub instance_versions_chunk_size: usize,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a struct field
[INFO] [stdout]  --> src/tuning.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     pub instance_free_chunk_size: usize,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a struct field
[INFO] [stdout]  --> src/tuning.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub inbox_queue_chunk_size: usize
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/class/mod.rs:41:26
[INFO] [stdout]    |
[INFO] [stdout] 41 |         let actor_name = unsafe { ::std::intrinsics::type_name::<A>() };
[INFO] [stdout]    |                          ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/type_registry.rs:50:23
[INFO] [stdout]    |
[INFO] [stdout] 50 |         let long_id = unsafe { type_id::<T>() };
[INFO] [stdout]    |                       ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/type_registry.rs:54:31
[INFO] [stdout]    |
[INFO] [stdout] 54 |             .insert(short_id, unsafe { type_name::<T>() }.into());
[INFO] [stdout]    |                               ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/type_registry.rs:60:62
[INFO] [stdout]    |
[INFO] [stdout] 60 |         if let Some(&short_id) = self.long_to_short_ids.get(&unsafe { type_id::<T>() }) {
[INFO] [stdout]    |                                                              ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/type_registry.rs:63:40
[INFO] [stdout]    |
[INFO] [stdout] 63 |             panic!("{:?} not known.", &unsafe { type_name::<T>() })
[INFO] [stdout]    |                                        ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/type_registry.rs:69:19
[INFO] [stdout]    |
[INFO] [stdout] 69 |             .get(&unsafe { type_id::<T>() })
[INFO] [stdout]    |                   ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.60s
[INFO] running `Command { std: "docker" "inspect" "ce6701db39406bc31addc11d26db42efb640572f53225d7a3a32759e32b185ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce6701db39406bc31addc11d26db42efb640572f53225d7a3a32759e32b185ef", kill_on_drop: false }`
[INFO] [stdout] ce6701db39406bc31addc11d26db42efb640572f53225d7a3a32759e32b185ef
