[INFO] fetching crate maskerad_memory_allocators 5.2.0...
[INFO] testing maskerad_memory_allocators-5.2.0 against 1.54.0 for beta-1.55-1
[INFO] extracting crate maskerad_memory_allocators 5.2.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate maskerad_memory_allocators 5.2.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate maskerad_memory_allocators 5.2.0
[INFO] finished tweaking crates.io crate maskerad_memory_allocators 5.2.0
[INFO] tweaked toml for crates.io crate maskerad_memory_allocators 5.2.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "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] 3113e6fa253a605915a42ee2da0f63b0ea530a396f5db8e9f31c3dcf0a0b0654
[INFO] running `Command { std: "docker" "start" "-a" "3113e6fa253a605915a42ee2da0f63b0ea530a396f5db8e9f31c3dcf0a0b0654", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3113e6fa253a605915a42ee2da0f63b0ea530a396f5db8e9f31c3dcf0a0b0654", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3113e6fa253a605915a42ee2da0f63b0ea530a396f5db8e9f31c3dcf0a0b0654", kill_on_drop: false }`
[INFO] [stdout] 3113e6fa253a605915a42ee2da0f63b0ea530a396f5db8e9f31c3dcf0a0b0654
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d87033d246b4e51e16e26eff2e4dd1052822ee7513d8be1a091d91b73adefaa1
[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" "d87033d246b4e51e16e26eff2e4dd1052822ee7513d8be1a091d91b73adefaa1", kill_on_drop: false }`
[INFO] [stderr]    Compiling maskerad_memory_allocators v5.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:92:1
[INFO] [stdout]    |
[INFO] [stdout] 92 | #![feature(alloc)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:93:1
[INFO] [stdout]    |
[INFO] [stdout] 93 | #![feature(raw)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:94:1
[INFO] [stdout]    |
[INFO] [stdout] 94 | #![feature(core_intrinsics)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/allocation_error.rs:43:32
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/utils.rs:49:33
[INFO] [stdout]    |
[INFO] [stdout] 49 |     let obj = mem::transmute::<&AllTypes, TraitObject>(ptr);
[INFO] [stdout]    |                                 ^^^^^^^^ help: use `dyn`: `dyn AllTypes`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stdout]  --> src/memory_chunk.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use alloc::raw_vec::RawVec;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stdout]   --> src/memory_chunk.rs:33:14
[INFO] [stdout]    |
[INFO] [stdout] 33 |     storage: RawVec<u8>,
[INFO] [stdout]    |              ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stdout]   --> src/memory_chunk.rs:49:22
[INFO] [stdout]    |
[INFO] [stdout] 49 |             storage: RawVec::with_capacity(size),
[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/utils.rs:49:43
[INFO] [stdout]    |
[INFO] [stdout] 49 |     let obj = mem::transmute::<&AllTypes, TraitObject>(ptr);
[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/utils.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |     use std::raw::TraitObject;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `cap` found for struct `RawVec` in the current scope
[INFO] [stdout]   --> src/memory_chunk.rs:40:95
[INFO] [stdout]    |
[INFO] [stdout] 40 |         write!(f, "MemoryChunk [Max capacity: {} bytes, Memory used: {} bytes]", self.storage.cap(), self.fill.get())
[INFO] [stdout]    |                                                                                               ^^^ private field, not a method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stdout]   --> src/memory_chunk.rs:49:22
[INFO] [stdout]    |
[INFO] [stdout] 49 |             storage: RawVec::with_capacity(size),
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `cap` found for struct `RawVec` in the current scope
[INFO] [stdout]   --> src/memory_chunk.rs:69:22
[INFO] [stdout]    |
[INFO] [stdout] 69 |         self.storage.cap()
[INFO] [stdout]    |                      ^^^ private field, not a method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stdout]   --> src/memory_chunk.rs:75:22
[INFO] [stdout]    |
[INFO] [stdout] 75 |         self.storage.ptr()
[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/utils.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 50 |     obj.vtable as *const TypeDescription
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 10 previous errors; 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0599, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `maskerad_memory_allocators`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "d87033d246b4e51e16e26eff2e4dd1052822ee7513d8be1a091d91b73adefaa1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d87033d246b4e51e16e26eff2e4dd1052822ee7513d8be1a091d91b73adefaa1", kill_on_drop: false }`
[INFO] [stdout] d87033d246b4e51e16e26eff2e4dd1052822ee7513d8be1a091d91b73adefaa1
