[INFO] fetching crate actors 0.1.0...
[INFO] checking actors-0.1.0 against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] extracting crate actors 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate actors 0.1.0 on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate actors 0.1.0
[INFO] finished tweaking crates.io crate actors 0.1.0
[INFO] tweaked toml for crates.io crate actors 0.1.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f3ee06905bdfa3301ecdd8ed3921f448dbc77e739cea8e0929b4ded4bd28fc6f
[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" "f3ee06905bdfa3301ecdd8ed3921f448dbc77e739cea8e0929b4ded4bd28fc6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f3ee06905bdfa3301ecdd8ed3921f448dbc77e739cea8e0929b4ded4bd28fc6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3ee06905bdfa3301ecdd8ed3921f448dbc77e739cea8e0929b4ded4bd28fc6f", kill_on_drop: false }`
[INFO] [stdout] f3ee06905bdfa3301ecdd8ed3921f448dbc77e739cea8e0929b4ded4bd28fc6f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c02ecf3c7b77e0e3b98d50d7ee3b27eb93682da459911416d85f2dc08d702388
[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" "c02ecf3c7b77e0e3b98d50d7ee3b27eb93682da459911416d85f2dc08d702388", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking actors v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:25:40
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl<Message: Send> Actor<Message> for FnMut(Message) + Send {
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Message) + Send`
[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/lib.rs:25:40
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl<Message: Send> Actor<Message> for FnMut(Message) + Send {
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Message) + Send`
[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/tests.rs:23:25
[INFO] [stdout]    |
[INFO] [stdout] 23 |                 let mut actor: &mut Actor<i32> = &mut counting_actor;
[INFO] [stdout]    |                                     ^^^^^^^^^^ help: use `dyn`: `dyn Actor<i32>`
[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[E0277]: `Message` cannot be sent between threads safely
[INFO] [stdout]   --> src/channel/mod.rs:18:34
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct ActorCell<Message, A: Actor<Message>> {
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^ `Message` cannot be sent between threads safely
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/lib.rs:20:26
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub trait Actor<Message: Send>: Send {
[INFO] [stdout]    |                          ---- required by this bound in `Actor`
[INFO] [stdout]    |
[INFO] [stdout] help: consider restricting type parameter `Message`
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct ActorCell<Message: std::marker::Send, A: Actor<Message>> {
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `actors`
[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] [stdout] error[E0277]: `Message` cannot be sent between threads safely
[INFO] [stdout]   --> src/channel/mod.rs:18:34
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct ActorCell<Message, A: Actor<Message>> {
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^ `Message` cannot be sent between threads safely
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/lib.rs:20:26
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub trait Actor<Message: Send>: Send {
[INFO] [stdout]    |                          ---- required by this bound in `Actor`
[INFO] [stdout]    |
[INFO] [stdout] help: consider restricting type parameter `Message`
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct ActorCell<Message: std::marker::Send, A: Actor<Message>> {
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "c02ecf3c7b77e0e3b98d50d7ee3b27eb93682da459911416d85f2dc08d702388", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c02ecf3c7b77e0e3b98d50d7ee3b27eb93682da459911416d85f2dc08d702388", kill_on_drop: false }`
[INFO] [stdout] c02ecf3c7b77e0e3b98d50d7ee3b27eb93682da459911416d85f2dc08d702388