[INFO] fetching crate alligator 0.1.0...
[INFO] checking alligator-0.1.0 against beta for pr-78714
[INFO] extracting crate alligator 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate alligator 0.1.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate alligator 0.1.0
[INFO] finished tweaking crates.io crate alligator 0.1.0
[INFO] tweaked toml for crates.io crate alligator 0.1.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "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] ac624b65361010e32f208b9ee112dbda268bc9aee2e5fff569a7fc5098bb6fd1
[INFO] running `Command { std: "docker" "start" "-a" "ac624b65361010e32f208b9ee112dbda268bc9aee2e5fff569a7fc5098bb6fd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac624b65361010e32f208b9ee112dbda268bc9aee2e5fff569a7fc5098bb6fd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac624b65361010e32f208b9ee112dbda268bc9aee2e5fff569a7fc5098bb6fd1", kill_on_drop: false }`
[INFO] [stdout] ac624b65361010e32f208b9ee112dbda268bc9aee2e5fff569a7fc5098bb6fd1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c7025e19e784e08db93a9e582f37b50d70c1fcf5719c4e614bdfd6e65c989691
[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" "c7025e19e784e08db93a9e582f37b50d70c1fcf5719c4e614bdfd6e65c989691", kill_on_drop: false }`
[INFO] [stderr]     Checking alligator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(await_macro)]
[INFO] [stdout]   |            ^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: subsumed by `.await` syntax
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::task::LocalWaker`
[INFO] [stdout]   --> src/lib.rs:66:29
[INFO] [stdout]    |
[INFO] [stdout] 66 | use std::task::{Wake, Poll, LocalWaker};
[INFO] [stdout]    |                             ^^^^^^^^^^ no `LocalWaker` in `task`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(await_macro)]
[INFO] [stdout]   |            ^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: subsumed by `.await` syntax
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::task::LocalWaker`
[INFO] [stdout]   --> src/lib.rs:66:29
[INFO] [stdout]    |
[INFO] [stdout] 66 | use std::task::{Wake, Poll, LocalWaker};
[INFO] [stdout]    |                             ^^^^^^^^^^ no `LocalWaker` in `task`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `local_waker_from_nonlocal` in module `std::task`
[INFO] [stdout]   --> src/lib.rs:83:22
[INFO] [stdout]    |
[INFO] [stdout] 83 |         ::std::task::local_waker_from_nonlocal(self.clone())
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^ not found in `std::task`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(futures_api)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(pin)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(async_await)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(await_macro)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(arbitrary_self_types)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'wake_trait'
[INFO] [stdout]   --> src/lib.rs:66:17
[INFO] [stdout]    |
[INFO] [stdout] 66 | use std::task::{Wake, Poll, LocalWaker};
[INFO] [stdout]    |                 ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #69912 <https://github.com/rust-lang/rust/issues/69912> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'wake_trait'
[INFO] [stdout]    --> src/lib.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 | /     fn wake(arc_self: &Arc<Self>) {
[INFO] [stdout] 106 | |         arc_self.release()
[INFO] [stdout] 107 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #69912 <https://github.com/rust-lang/rust/issues/69912> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'wake_trait'
[INFO] [stdout]    --> src/lib.rs:104:6
[INFO] [stdout]     |
[INFO] [stdout] 104 | impl Wake for MainWaker {
[INFO] [stdout]     |      ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #69912 <https://github.com/rust-lang/rust/issues/69912> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `local_waker_from_nonlocal` in module `std::task`
[INFO] [stdout]   --> src/lib.rs:83:22
[INFO] [stdout]    |
[INFO] [stdout] 83 |         ::std::task::local_waker_from_nonlocal(self.clone())
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^ not found in `std::task`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(futures_api)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(pin)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(async_await)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(await_macro)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(arbitrary_self_types)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'wake_trait'
[INFO] [stdout]   --> src/lib.rs:66:17
[INFO] [stdout]    |
[INFO] [stdout] 66 | use std::task::{Wake, Poll, LocalWaker};
[INFO] [stdout]    |                 ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #69912 <https://github.com/rust-lang/rust/issues/69912> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'wake_trait'
[INFO] [stdout]    --> src/lib.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 | /     fn wake(arc_self: &Arc<Self>) {
[INFO] [stdout] 106 | |         arc_self.release()
[INFO] [stdout] 107 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #69912 <https://github.com/rust-lang/rust/issues/69912> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'wake_trait'
[INFO] [stdout]    --> src/lib.rs:104:6
[INFO] [stdout]     |
[INFO] [stdout] 104 | impl Wake for MainWaker {
[INFO] [stdout]     |      ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #69912 <https://github.com/rust-lang/rust/issues/69912> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0186]: method `wake` has a `self: Arc<Self>` declaration in the trait, but not in the impl
[INFO] [stdout]    --> src/lib.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     fn wake(arc_self: &Arc<Self>) {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `self: Arc<Self>` in impl
[INFO] [stdout]     |
[INFO] [stdout]     = note: `wake` from trait: `fn(Arc<Self>)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0186]: method `wake` has a `self: Arc<Self>` declaration in the trait, but not in the impl
[INFO] [stdout]    --> src/lib.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     fn wake(arc_self: &Arc<Self>) {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `self: Arc<Self>` in impl
[INFO] [stdout]     |
[INFO] [stdout]     = note: `wake` from trait: `fn(Arc<Self>)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 12 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0186, E0425, E0432, E0554, E0557, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0186`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 12 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0186, E0425, E0432, E0554, E0557, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0186`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `alligator`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "c7025e19e784e08db93a9e582f37b50d70c1fcf5719c4e614bdfd6e65c989691", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7025e19e784e08db93a9e582f37b50d70c1fcf5719c4e614bdfd6e65c989691", kill_on_drop: false }`
[INFO] [stdout] c7025e19e784e08db93a9e582f37b50d70c1fcf5719c4e614bdfd6e65c989691