[INFO] fetching crate extra_pointers 0.1.4...
[INFO] checking extra_pointers-0.1.4 against master#30f74ff0dc4d66debc8b50724c446f817e5f75f4 for pr-121848-1
[INFO] extracting crate extra_pointers 0.1.4 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate extra_pointers 0.1.4 on toolchain 30f74ff0dc4d66debc8b50724c446f817e5f75f4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate extra_pointers 0.1.4
[INFO] finished tweaking crates.io crate extra_pointers 0.1.4
[INFO] tweaked toml for crates.io crate extra_pointers 0.1.4 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fb377c0c225c5fc081745cefb3cfb550ab6e3ff548aa2032984eaa01d05be6c0
[INFO] running `Command { std: "docker" "start" "-a" "fb377c0c225c5fc081745cefb3cfb550ab6e3ff548aa2032984eaa01d05be6c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb377c0c225c5fc081745cefb3cfb550ab6e3ff548aa2032984eaa01d05be6c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb377c0c225c5fc081745cefb3cfb550ab6e3ff548aa2032984eaa01d05be6c0", kill_on_drop: false }`
[INFO] [stdout] fb377c0c225c5fc081745cefb3cfb550ab6e3ff548aa2032984eaa01d05be6c0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 94852f7ed48ff87f194b54201d0de7401961dc76a97ca2fe9195310e1e95e5bf
[INFO] running `Command { std: "docker" "start" "-a" "94852f7ed48ff87f194b54201d0de7401961dc76a97ca2fe9195310e1e95e5bf", kill_on_drop: false }`
[INFO] [stderr]     Checking extra_pointers v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::ptr::Shared`
[INFO] [stdout]  --> src/irc.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ptr::Shared;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^ no `Shared` in `ptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::ptr::Shared`
[INFO] [stdout]  --> src/irc.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ptr::Shared;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^ no `Shared` in `ptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `intrinsics` is internal to the compiler or standard library
[INFO] [stdout]  --> src/lib.rs:1:44
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(shared, unsize, coerce_unsized, intrinsics)]
[INFO] [stdout]   |                                            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: using it is strongly discouraged
[INFO] [stdout]   = note: `#[warn(internal_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Send` is imported redundantly
[INFO] [stdout]  --> src/irc.rs:2:20
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::marker::{ Send, Sync, Unsize };
[INFO] [stdout]   |                    ^^^^
[INFO] [stdout]  --> /rustc/30f74ff0dc4d66debc8b50724c446f817e5f75f4/library/std/src/prelude/mod.rs:105:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Send` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Sync` is imported redundantly
[INFO] [stdout]  --> src/irc.rs:2:26
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::marker::{ Send, Sync, Unsize };
[INFO] [stdout]   |                          ^^^^
[INFO] [stdout]  --> /rustc/30f74ff0dc4d66debc8b50724c446f817e5f75f4/library/std/src/prelude/mod.rs:105:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Sync` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `intrinsics` is internal to the compiler or standard library
[INFO] [stdout]  --> src/lib.rs:1:44
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(shared, unsize, coerce_unsized, intrinsics)]
[INFO] [stdout]   |                                            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: using it is strongly discouraged
[INFO] [stdout]   = note: `#[warn(internal_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Send` is imported redundantly
[INFO] [stdout]  --> src/irc.rs:2:20
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::marker::{ Send, Sync, Unsize };
[INFO] [stdout]   |                    ^^^^
[INFO] [stdout]  --> /rustc/30f74ff0dc4d66debc8b50724c446f817e5f75f4/library/std/src/prelude/mod.rs:105:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Send` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Sync` is imported redundantly
[INFO] [stdout]  --> src/irc.rs:2:26
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::marker::{ Send, Sync, Unsize };
[INFO] [stdout]   |                          ^^^^
[INFO] [stdout]  --> /rustc/30f74ff0dc4d66debc8b50724c446f817e5f75f4/library/std/src/prelude/mod.rs:105:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Sync` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::any::Any`
[INFO] [stdout]  --> src/test.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::any::Any;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `shared`
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(shared, unsize, coerce_unsized, intrinsics)]
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `shared`
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(shared, unsize, coerce_unsized, intrinsics)]
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0374]: the trait `CoerceUnsized` may only be implemented for a coercion between structures
[INFO] [stdout]   --> src/irc.rs:23:1
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl<T: ?Sized + IntrusiveReferenceCounted, U: ?Sized + IntrusiveReferenceCounted> CoerceUnsized<Irc<U>> for Irc<T> where T: Unsize<U> {}
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected a single field to be coerced, none found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0374]: the trait `CoerceUnsized` may only be implemented for a coercion between structures
[INFO] [stdout]   --> src/irc.rs:23:1
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl<T: ?Sized + IntrusiveReferenceCounted, U: ?Sized + IntrusiveReferenceCounted> CoerceUnsized<Irc<U>> for Irc<T> where T: Unsize<U> {}
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected a single field to be coerced, none found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/test.rs:20:33
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let irc2 = irc1.clone() as Irc<IntrusiveReferenceCounted>;
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let irc2 = irc1.clone() as Irc<dyn IntrusiveReferenceCounted>;
[INFO] [stdout]    |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0374, E0432, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0374`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `extra_pointers` (lib) due to 4 previous errors; 3 warnings emitted
[INFO] [stdout] Some errors have detailed explanations: E0374, E0432, E0635.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about an error, try `rustc --explain E0374`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `extra_pointers` (lib test) due to 4 previous errors; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "94852f7ed48ff87f194b54201d0de7401961dc76a97ca2fe9195310e1e95e5bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94852f7ed48ff87f194b54201d0de7401961dc76a97ca2fe9195310e1e95e5bf", kill_on_drop: false }`
[INFO] [stdout] 94852f7ed48ff87f194b54201d0de7401961dc76a97ca2fe9195310e1e95e5bf
[INFO] checking extra_pointers-0.1.4 against try#72eda894eb3548c7ba774079ce0afab42958d4ee for pr-121848-1
[INFO] extracting crate extra_pointers 0.1.4 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate extra_pointers 0.1.4 on toolchain 72eda894eb3548c7ba774079ce0afab42958d4ee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate extra_pointers 0.1.4
[INFO] finished tweaking crates.io crate extra_pointers 0.1.4
[INFO] tweaked toml for crates.io crate extra_pointers 0.1.4 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" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b0638051b654060223bc2c8a32c231c5dcae736065fa99471140e95523207a8a
[INFO] running `Command { std: "docker" "start" "-a" "b0638051b654060223bc2c8a32c231c5dcae736065fa99471140e95523207a8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b0638051b654060223bc2c8a32c231c5dcae736065fa99471140e95523207a8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0638051b654060223bc2c8a32c231c5dcae736065fa99471140e95523207a8a", kill_on_drop: false }`
[INFO] [stdout] b0638051b654060223bc2c8a32c231c5dcae736065fa99471140e95523207a8a
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e621df9abeb918d00436fb3826b8958f91988296f142b1bcc591a73000160c29
[INFO] running `Command { std: "docker" "start" "-a" "e621df9abeb918d00436fb3826b8958f91988296f142b1bcc591a73000160c29", kill_on_drop: false }`
[INFO] [stderr]     Checking extra_pointers v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::ptr::Shared`
[INFO] [stdout]  --> src/irc.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ptr::Shared;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^ no `Shared` in `ptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::ptr::Shared`
[INFO] [stdout]  --> src/irc.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ptr::Shared;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^ no `Shared` in `ptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `intrinsics` is internal to the compiler or standard library
[INFO] [stdout]  --> src/lib.rs:1:44
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(shared, unsize, coerce_unsized, intrinsics)]
[INFO] [stdout]   |                                            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: using it is strongly discouraged
[INFO] [stdout]   = note: `#[warn(internal_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Send` is imported redundantly
[INFO] [stdout]  --> src/irc.rs:2:20
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::marker::{ Send, Sync, Unsize };
[INFO] [stdout]   |                    ^^^^
[INFO] [stdout]  --> /rustc/72eda894eb3548c7ba774079ce0afab42958d4ee/library/std/src/prelude/mod.rs:105:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Send` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Sync` is imported redundantly
[INFO] [stdout]  --> src/irc.rs:2:26
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::marker::{ Send, Sync, Unsize };
[INFO] [stdout]   |                          ^^^^
[INFO] [stdout]  --> /rustc/72eda894eb3548c7ba774079ce0afab42958d4ee/library/std/src/prelude/mod.rs:105:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Sync` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `intrinsics` is internal to the compiler or standard library
[INFO] [stdout]  --> src/lib.rs:1:44
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(shared, unsize, coerce_unsized, intrinsics)]
[INFO] [stdout]   |                                            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: using it is strongly discouraged
[INFO] [stdout]   = note: `#[warn(internal_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Send` is imported redundantly
[INFO] [stdout]  --> src/irc.rs:2:20
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::marker::{ Send, Sync, Unsize };
[INFO] [stdout]   |                    ^^^^
[INFO] [stdout]  --> /rustc/72eda894eb3548c7ba774079ce0afab42958d4ee/library/std/src/prelude/mod.rs:105:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Send` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Sync` is imported redundantly
[INFO] [stdout]  --> src/irc.rs:2:26
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::marker::{ Send, Sync, Unsize };
[INFO] [stdout]   |                          ^^^^
[INFO] [stdout]  --> /rustc/72eda894eb3548c7ba774079ce0afab42958d4ee/library/std/src/prelude/mod.rs:105:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Sync` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::any::Any`
[INFO] [stdout]  --> src/test.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::any::Any;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `shared`
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(shared, unsize, coerce_unsized, intrinsics)]
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `shared`
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(shared, unsize, coerce_unsized, intrinsics)]
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0374]: the trait `CoerceUnsized` may only be implemented for a coercion between structures
[INFO] [stdout]   --> src/irc.rs:23:1
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl<T: ?Sized + IntrusiveReferenceCounted, U: ?Sized + IntrusiveReferenceCounted> CoerceUnsized<Irc<U>> for Irc<T> where T: Unsize<U> {}
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected a single field to be coerced, none found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0374]: the trait `CoerceUnsized` may only be implemented for a coercion between structures
[INFO] [stdout]   --> src/irc.rs:23:1
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl<T: ?Sized + IntrusiveReferenceCounted, U: ?Sized + IntrusiveReferenceCounted> CoerceUnsized<Irc<U>> for Irc<T> where T: Unsize<U> {}
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected a single field to be coerced, none found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/test.rs:20:33
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let irc2 = irc1.clone() as Irc<IntrusiveReferenceCounted>;
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let irc2 = irc1.clone() as Irc<dyn IntrusiveReferenceCounted>;
[INFO] [stdout]    |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0374, E0432, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0374`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0374, E0432, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0374`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `extra_pointers` (lib) due to 4 previous errors; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `extra_pointers` (lib test) due to 4 previous errors; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "e621df9abeb918d00436fb3826b8958f91988296f142b1bcc591a73000160c29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e621df9abeb918d00436fb3826b8958f91988296f142b1bcc591a73000160c29", kill_on_drop: false }`
[INFO] [stdout] e621df9abeb918d00436fb3826b8958f91988296f142b1bcc591a73000160c29
