[INFO] fetching crate async-codec-util 0.3.3...
[INFO] checking async-codec-util-0.3.3 against beta for pr-78714
[INFO] extracting crate async-codec-util 0.3.3 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate async-codec-util 0.3.3 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 async-codec-util 0.3.3
[INFO] finished tweaking crates.io crate async-codec-util 0.3.3
[INFO] tweaked toml for crates.io crate async-codec-util 0.3.3 written to /workspace/builds/worker-14/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] [stderr]     Blocking waiting for file lock on package cache
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] [stdout] 412d87a4eee0f1d2ad133dc822d717a1130ec27636f61250748b0b4179455888
[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" "412d87a4eee0f1d2ad133dc822d717a1130ec27636f61250748b0b4179455888", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "412d87a4eee0f1d2ad133dc822d717a1130ec27636f61250748b0b4179455888", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "412d87a4eee0f1d2ad133dc822d717a1130ec27636f61250748b0b4179455888", kill_on_drop: false }`
[INFO] [stdout] 412d87a4eee0f1d2ad133dc822d717a1130ec27636f61250748b0b4179455888
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 2f7887fc8698fc600824836c03c14e7cc27a763ff7057d4c2537166cfd5e6298
[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" "2f7887fc8698fc600824836c03c14e7cc27a763ff7057d4c2537166cfd5e6298", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-core v0.2.1
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]     Checking futures-io v0.2.1
[INFO] [stderr]     Checking futures-channel v0.2.1
[INFO] [stderr]     Checking quickcheck v0.6.2
[INFO] [stderr]     Checking async-codec v0.3.0
[INFO] [stderr]     Checking async-ringbuffer v0.3.1
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/async-ringbuffer-0.3.1/src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(offset_to)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking futures-sink v0.2.1
[INFO] [stdout] error[E0599]: no method named `offset_to` found for raw pointer `*mut u8` in the current scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/async-ringbuffer-0.3.1/src/lib.rs:70:18
[INFO] [stdout]    |
[INFO] [stdout] 70 |                 .offset_to(self.read.offset(self.amount as isize))
[INFO] [stdout]    |                  ^^^^^^^^^ help: there is an associated function with a similar name: `offset`
[INFO] [stdout]    |
[INFO] [stdout]    = note: try using `<*const T>::as_ref()` to get a reference to the type behind the pointer: https://doc.rust-lang.org/std/primitive.pointer.html#method.as_ref
[INFO] [stdout]    = note: using `<*const T>::as_ref()` on a pointer which is unaligned or points to invalid or uninitialized memory is undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `offset_to` found for raw pointer `*mut u8` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/async-ringbuffer-0.3.1/src/lib.rs:133:46
[INFO] [stdout]     |
[INFO] [stdout] 133 |             let distance_we = rb.write_ptr().offset_to(end).unwrap() as usize;
[INFO] [stdout]     |                                              ^^^^^^^^^ help: there is an associated function with a similar name: `offset`
[INFO] [stdout]     |
[INFO] [stdout]     = note: try using `<*const T>::as_ref()` to get a reference to the type behind the pointer: https://doc.rust-lang.org/std/primitive.pointer.html#method.as_ref
[INFO] [stdout]     = note: using `<*const T>::as_ref()` on a pointer which is unaligned or points to invalid or uninitialized memory is undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `offset_to` found for raw pointer `*mut u8` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/async-ringbuffer-0.3.1/src/lib.rs:225:39
[INFO] [stdout]     |
[INFO] [stdout] 225 |             let distance_re = rb.read.offset_to(end).unwrap() as usize;
[INFO] [stdout]     |                                       ^^^^^^^^^ help: there is an associated function with a similar name: `offset`
[INFO] [stdout]     |
[INFO] [stdout]     = note: try using `<*const T>::as_ref()` to get a reference to the type behind the pointer: https://doc.rust-lang.org/std/primitive.pointer.html#method.as_ref
[INFO] [stdout]     = note: using `<*const T>::as_ref()` on a pointer which is unaligned or points to invalid or uninitialized memory is undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `async-ringbuffer`
[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" "2f7887fc8698fc600824836c03c14e7cc27a763ff7057d4c2537166cfd5e6298", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f7887fc8698fc600824836c03c14e7cc27a763ff7057d4c2537166cfd5e6298", kill_on_drop: false }`
[INFO] [stdout] 2f7887fc8698fc600824836c03c14e7cc27a763ff7057d4c2537166cfd5e6298