[INFO] fetching crate romeo 0.0.5...
[INFO] testing romeo-0.0.5 against 1.47.0 for beta-1.48-1
[INFO] extracting crate romeo 0.0.5 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate romeo 0.0.5 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate romeo 0.0.5
[INFO] finished tweaking crates.io crate romeo 0.0.5
[INFO] tweaked toml for crates.io crate romeo 0.0.5 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 47cfb277beb858d622cf6820654e05eca9bb049477f751d91b62bd6360f3cd4d
[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" "47cfb277beb858d622cf6820654e05eca9bb049477f751d91b62bd6360f3cd4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "47cfb277beb858d622cf6820654e05eca9bb049477f751d91b62bd6360f3cd4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47cfb277beb858d622cf6820654e05eca9bb049477f751d91b62bd6360f3cd4d", kill_on_drop: false }`
[INFO] [stdout] 47cfb277beb858d622cf6820654e05eca9bb049477f751d91b62bd6360f3cd4d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 344a03b14fbfae5c5503bd7c5b636900e8357a797a72a506576accff5d02590e
[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" "344a03b14fbfae5c5503bd7c5b636900e8357a797a72a506576accff5d02590e", kill_on_drop: false }`
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling memoffset v0.2.1
[INFO] [stderr]    Compiling crossbeam-utils v0.5.0
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling owning_ref v0.4.1
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling uuid v0.6.5
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling lock_api v0.1.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.6.1
[INFO] [stderr]    Compiling parking_lot v0.6.4
[INFO] [stderr]    Compiling crossbeam-channel v0.2.6
[INFO] [stderr]    Compiling romeo v0.0.5 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::boxed::FnBox`
[INFO] [stdout]  --> src/address.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::boxed::FnBox;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^ no `FnBox` in `boxed`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::boxed::FnBox`
[INFO] [stdout]  --> src/cell.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::boxed::FnBox;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^ no `FnBox` in `boxed`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(fnbox)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/cell.rs:19:25
[INFO] [stdout]    |
[INFO] [stdout] 19 |     actor_producer: Box<Fn() -> A>,
[INFO] [stdout]    |                         ^^^^^^^^^ help: use `dyn`: `dyn Fn() -> A`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/cell.rs:27:43
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub(crate) fn new(actor_producer: Box<Fn() -> A>, scheduler: Weak<Scheduler>) -> Arc<Self> {
[INFO] [stdout]    |                                           ^^^^^^^^^ help: use `dyn`: `dyn Fn() -> A`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/cell.rs:91:20
[INFO] [stdout]    |
[INFO] [stdout] 91 | impl PartialEq for ACell {
[INFO] [stdout]    |                    ^^^^^ help: use `dyn`: `dyn ACell`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/cell.rs:92:26
[INFO] [stdout]    |
[INFO] [stdout] 92 |     fn eq(&self, other: &ACell) -> bool {
[INFO] [stdout]    |                          ^^^^^ help: use `dyn`: `dyn ACell`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/cell.rs:96:13
[INFO] [stdout]    |
[INFO] [stdout] 96 | impl Eq for ACell {}
[INFO] [stdout]    |             ^^^^^ help: use `dyn`: `dyn ACell`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/scheduler.rs:18:27
[INFO] [stdout]    |
[INFO] [stdout] 18 |     cells: RwLock<Vec<Arc<ACell>>>,
[INFO] [stdout]    |                           ^^^^^ help: use `dyn`: `dyn ACell`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/scheduler.rs:21:38
[INFO] [stdout]    |
[INFO] [stdout] 21 |     actor_starts: Mutex<VecDeque<Arc<ACell>>>,
[INFO] [stdout]    |                                      ^^^^^ help: use `dyn`: `dyn ACell`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/scheduler.rs:22:38
[INFO] [stdout]    |
[INFO] [stdout] 22 |     actor_stops:  Mutex<VecDeque<Arc<ACell>>>,
[INFO] [stdout]    |                                      ^^^^^ help: use `dyn`: `dyn ACell`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/scheduler.rs:35:54
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub(crate) fn register_new_cell(&self, cell: Arc<ACell>) {
[INFO] [stdout]    |                                                      ^^^^^ help: use `dyn`: `dyn ACell`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `romeo`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "344a03b14fbfae5c5503bd7c5b636900e8357a797a72a506576accff5d02590e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "344a03b14fbfae5c5503bd7c5b636900e8357a797a72a506576accff5d02590e", kill_on_drop: false }`
[INFO] [stdout] 344a03b14fbfae5c5503bd7c5b636900e8357a797a72a506576accff5d02590e
