[INFO] fetching crate metatype 0.2.0...
[INFO] checking metatype-0.2.0 against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] extracting crate metatype 0.2.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate metatype 0.2.0 on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate metatype 0.2.0
[INFO] finished tweaking crates.io crate metatype 0.2.0
[INFO] tweaked toml for crates.io crate metatype 0.2.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b71d1f6bbd2b2ae53e49a26ec454dd6e89662925f250344d5bc8736d8915a922
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b71d1f6bbd2b2ae53e49a26ec454dd6e89662925f250344d5bc8736d8915a922", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b71d1f6bbd2b2ae53e49a26ec454dd6e89662925f250344d5bc8736d8915a922", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b71d1f6bbd2b2ae53e49a26ec454dd6e89662925f250344d5bc8736d8915a922", kill_on_drop: false }`
[INFO] [stdout] b71d1f6bbd2b2ae53e49a26ec454dd6e89662925f250344d5bc8736d8915a922
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b82018e73e36d10c97109929a6ed1f7c3dfd93345f38424376cabc9f09498ec1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b82018e73e36d10c97109929a6ed1f7c3dfd93345f38424376cabc9f09498ec1", kill_on_drop: false }`
[INFO] [stderr]     Checking metatype v0.2.0 (/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:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 | #![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]    = help: consider using `min_specialization` instead, which is more stable and complete
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `std::raw`: use pointer metadata APIs instead https://github.com/rust-lang/rust/issues/81513
[INFO] [stdout]   --> src/lib.rs:56:190
[INFO] [stdout]    |
[INFO] [stdout] 56 | ..._val, transmute_copy}, ptr::{slice_from_raw_parts_mut, NonNull}, raw
[INFO] [stdout]    |                                                                     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[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:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 | #![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]    = help: consider using `min_specialization` instead, which is more stable and complete
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `std::raw::TraitObject`: use pointer metadata APIs instead https://github.com/rust-lang/rust/issues/81513
[INFO] [stdout]    --> src/lib.rs:114:63
[INFO] [stdout]     |
[INFO] [stdout] 114 |         let trait_object = unsafe { transmute_coerce::<*const Self, raw::TraitObject>(self) };
[INFO] [stdout]     |                                                                     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `std::raw::TraitObject`: use pointer metadata APIs instead https://github.com/rust-lang/rust/issues/81513
[INFO] [stdout]    --> src/lib.rs:123:63
[INFO] [stdout]     |
[INFO] [stdout] 123 |         let trait_object = unsafe { transmute_coerce::<*const Self, raw::TraitObject>(self) };
[INFO] [stdout]     |                                                                     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `std::raw::TraitObject`: use pointer metadata APIs instead https://github.com/rust-lang/rust/issues/81513
[INFO] [stdout]    --> src/lib.rs:129:63
[INFO] [stdout]     |
[INFO] [stdout] 129 |         let trait_object = unsafe { transmute_coerce::<*const Self, raw::TraitObject>(self) };
[INFO] [stdout]     |                                                                     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `std::raw::TraitObject`: use pointer metadata APIs instead https://github.com/rust-lang/rust/issues/81513
[INFO] [stdout]    --> src/lib.rs:156:13
[INFO] [stdout]     |
[INFO] [stdout] 156 |         let ret = raw::TraitObject { data: thin, vtable };
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `std::raw::TraitObject`: use pointer metadata APIs instead https://github.com/rust-lang/rust/issues/81513
[INFO] [stdout]    --> src/lib.rs:157:31
[INFO] [stdout]     |
[INFO] [stdout] 157 |         unsafe { transmute_coerce::<raw::TraitObject, *mut Self>(ret) }
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `std::raw`: use pointer metadata APIs instead https://github.com/rust-lang/rust/issues/81513
[INFO] [stdout]   --> src/lib.rs:56:190
[INFO] [stdout]    |
[INFO] [stdout] 56 | ..._val, transmute_copy}, ptr::{slice_from_raw_parts_mut, NonNull}, raw
[INFO] [stdout]    |                                                                     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `std::raw::TraitObject`: use pointer metadata APIs instead https://github.com/rust-lang/rust/issues/81513
[INFO] [stdout]    --> src/lib.rs:114:63
[INFO] [stdout]     |
[INFO] [stdout] 114 |         let trait_object = unsafe { transmute_coerce::<*const Self, raw::TraitObject>(self) };
[INFO] [stdout]     |                                                                     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `std::raw::TraitObject`: use pointer metadata APIs instead https://github.com/rust-lang/rust/issues/81513
[INFO] [stdout]    --> src/lib.rs:123:63
[INFO] [stdout]     |
[INFO] [stdout] 123 |         let trait_object = unsafe { transmute_coerce::<*const Self, raw::TraitObject>(self) };
[INFO] [stdout]     |                                                                     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `std::raw::TraitObject`: use pointer metadata APIs instead https://github.com/rust-lang/rust/issues/81513
[INFO] [stdout]    --> src/lib.rs:129:63
[INFO] [stdout]     |
[INFO] [stdout] 129 |         let trait_object = unsafe { transmute_coerce::<*const Self, raw::TraitObject>(self) };
[INFO] [stdout]     |                                                                     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `std::raw::TraitObject`: use pointer metadata APIs instead https://github.com/rust-lang/rust/issues/81513
[INFO] [stdout]    --> src/lib.rs:156:13
[INFO] [stdout]     |
[INFO] [stdout] 156 |         let ret = raw::TraitObject { data: thin, vtable };
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `std::raw::TraitObject`: use pointer metadata APIs instead https://github.com/rust-lang/rust/issues/81513
[INFO] [stdout]    --> src/lib.rs:157:31
[INFO] [stdout]     |
[INFO] [stdout] 157 |         unsafe { transmute_coerce::<raw::TraitObject, *mut Self>(ret) }
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated field `std::raw::TraitObject::data`: use pointer metadata APIs instead https://github.com/rust-lang/rust/issues/81513
[INFO] [stdout]    --> src/lib.rs:115:33
[INFO] [stdout]     |
[INFO] [stdout] 115 |         assert_eq!(self as *const (), trait_object.data);
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated field `std::raw::TraitObject::data`: use pointer metadata APIs instead https://github.com/rust-lang/rust/issues/81513
[INFO] [stdout]    --> src/lib.rs:115:33
[INFO] [stdout]     |
[INFO] [stdout] 115 |         assert_eq!(self as *const (), trait_object.data);
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated field `std::raw::TraitObject::vtable`: use pointer metadata APIs instead https://github.com/rust-lang/rust/issues/81513
[INFO] [stdout]    --> src/lib.rs:117:23
[INFO] [stdout]     |
[INFO] [stdout] 117 |             vtable: unsafe { &*trait_object.vtable },
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated field `std::raw::TraitObject::data`: use pointer metadata APIs instead https://github.com/rust-lang/rust/issues/81513
[INFO] [stdout]    --> src/lib.rs:124:33
[INFO] [stdout]     |
[INFO] [stdout] 124 |         assert_eq!(self as *const (), trait_object.data);
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated field `std::raw::TraitObject::data`: use pointer metadata APIs instead https://github.com/rust-lang/rust/issues/81513
[INFO] [stdout]    --> src/lib.rs:130:31
[INFO] [stdout]     |
[INFO] [stdout] 130 |         assert_eq!(self as *mut (), trait_object.data);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated field `std::raw::TraitObject::data`: use pointer metadata APIs instead https://github.com/rust-lang/rust/issues/81513
[INFO] [stdout]    --> src/lib.rs:156:32
[INFO] [stdout]     |
[INFO] [stdout] 156 |         let ret = raw::TraitObject { data: thin, vtable };
[INFO] [stdout]     |                                      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated field `std::raw::TraitObject::vtable`: use pointer metadata APIs instead https://github.com/rust-lang/rust/issues/81513
[INFO] [stdout]    --> src/lib.rs:156:44
[INFO] [stdout]     |
[INFO] [stdout] 156 |         let ret = raw::TraitObject { data: thin, vtable };
[INFO] [stdout]     |                                                  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated field `std::raw::TraitObject::vtable`: use pointer metadata APIs instead https://github.com/rust-lang/rust/issues/81513
[INFO] [stdout]    --> src/lib.rs:117:23
[INFO] [stdout]     |
[INFO] [stdout] 117 |             vtable: unsafe { &*trait_object.vtable },
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated field `std::raw::TraitObject::data`: use pointer metadata APIs instead https://github.com/rust-lang/rust/issues/81513
[INFO] [stdout]    --> src/lib.rs:124:33
[INFO] [stdout]     |
[INFO] [stdout] 124 |         assert_eq!(self as *const (), trait_object.data);
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated field `std::raw::TraitObject::data`: use pointer metadata APIs instead https://github.com/rust-lang/rust/issues/81513
[INFO] [stdout]    --> src/lib.rs:130:31
[INFO] [stdout]     |
[INFO] [stdout] 130 |         assert_eq!(self as *mut (), trait_object.data);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated field `std::raw::TraitObject::data`: use pointer metadata APIs instead https://github.com/rust-lang/rust/issues/81513
[INFO] [stdout]    --> src/lib.rs:156:32
[INFO] [stdout]     |
[INFO] [stdout] 156 |         let ret = raw::TraitObject { data: thin, vtable };
[INFO] [stdout]     |                                      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated field `std::raw::TraitObject::vtable`: use pointer metadata APIs instead https://github.com/rust-lang/rust/issues/81513
[INFO] [stdout]    --> src/lib.rs:156:44
[INFO] [stdout]     |
[INFO] [stdout] 156 |         let ret = raw::TraitObject { data: thin, vtable };
[INFO] [stdout]     |                                                  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `slice_from_raw_parts` has been stable since 1.42.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 | #![feature(slice_from_raw_parts)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `slice_from_raw_parts` has been stable since 1.42.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 | #![feature(slice_from_raw_parts)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `Command { std: "docker" "inspect" "b82018e73e36d10c97109929a6ed1f7c3dfd93345f38424376cabc9f09498ec1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b82018e73e36d10c97109929a6ed1f7c3dfd93345f38424376cabc9f09498ec1", kill_on_drop: false }`
[INFO] [stdout] b82018e73e36d10c97109929a6ed1f7c3dfd93345f38424376cabc9f09498ec1