[INFO] crate rats 0.0.1 is already in cache [INFO] testing rats-0.0.1 against 1.44.0 for beta-1.45-1 [INFO] extracting crate rats 0.0.1 into /workspace/builds/worker-6/source [INFO] validating manifest of crates.io crate rats 0.0.1 on toolchain 1.44.0 [INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking crates.io crate rats 0.0.1 [INFO] finished tweaking crates.io crate rats 0.0.1 [INFO] tweaked toml for crates.io crate rats 0.0.1 written to /workspace/builds/worker-6/source/Cargo.toml [INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 9c78fbd3b61845da9ebd0e27fe4bc966063fd39be74fcb3faa8d6bd8d1563f1e [INFO] running `"docker" "start" "-a" "9c78fbd3b61845da9ebd0e27fe4bc966063fd39be74fcb3faa8d6bd8d1563f1e"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling either v1.5.3 [INFO] [stderr] Compiling futures-core-preview v0.2.3 [INFO] [stderr] Compiling futures-channel-preview v0.2.2 [INFO] [stderr] Compiling futures-io-preview v0.2.2 [INFO] [stderr] Compiling futures-sink-preview v0.2.2 [INFO] [stderr] Compiling futures-util-preview v0.2.2 [INFO] [stderr] Compiling futures-executor-preview v0.2.2 [INFO] [stderr] Compiling futures-stable-preview v0.2.3 [INFO] [stderr] Compiling futures-async-runtime-preview v0.2.3 [INFO] [stderr] Compiling futures-preview v0.2.2 [INFO] [stderr] Compiling rats v0.0.1 (/opt/rustwide/workdir) [INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stderr] --> src/lib.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(test)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stderr] --> src/lib.rs:2:1 [INFO] [stderr] | [INFO] [stderr] 2 | #![feature(associated_type_defaults)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stderr] --> src/lib.rs:3:1 [INFO] [stderr] | [INFO] [stderr] 3 | #![feature(specialization)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stderr] --> src/lib.rs:4:1 [INFO] [stderr] | [INFO] [stderr] 4 | #![feature(tool_attributes)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `futures::future::AndThen` [INFO] [stderr] --> src/instances/future.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | use futures::future::AndThen; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `applicative::Applicative` [INFO] [stderr] --> src/instances/result.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use applicative::Applicative; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/kind.rs:16:16 [INFO] [stderr] | [INFO] [stderr] 16 | Future(Box + 'f_>), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future + 'f_` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/kinds.rs:69:68 [INFO] [stderr] | [INFO] [stderr] 69 | impl<'f_, A: 'f_, B: 'f_> IntoKind<'f_, FutureKind, A, B> for Box> [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/kinds.rs:159:20 [INFO] [stderr] | [INFO] [stderr] 159 | type Out = Box + 'f_>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future + 'f_` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/kinds.rs:160:27 [INFO] [stderr] | [INFO] [stderr] 160 | fn reify(self) -> Box + 'f_> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future + 'f_` [INFO] [stderr] [INFO] [stderr] error: aborting due to 4 previous errors; 6 warnings emitted [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0554`. [INFO] [stderr] error: could not compile `rats`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "9c78fbd3b61845da9ebd0e27fe4bc966063fd39be74fcb3faa8d6bd8d1563f1e"` [INFO] running `"docker" "rm" "-f" "9c78fbd3b61845da9ebd0e27fe4bc966063fd39be74fcb3faa8d6bd8d1563f1e"` [INFO] [stdout] 9c78fbd3b61845da9ebd0e27fe4bc966063fd39be74fcb3faa8d6bd8d1563f1e