[INFO] fetching crate rats 0.0.1... [INFO] testing rats-0.0.1 against 1.59.0 for beta-1.60-1 [INFO] extracting crate rats 0.0.1 into /workspace/builds/worker-31/source [INFO] validating manifest of crates.io crate rats 0.0.1 on toolchain 1.59.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [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-31/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--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-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1a5888d4f097d0470e50a396083a5ada21d30dddeda9759388b780a2fe1ca799 [INFO] running `Command { std: "docker" "start" "-a" "1a5888d4f097d0470e50a396083a5ada21d30dddeda9759388b780a2fe1ca799", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1a5888d4f097d0470e50a396083a5ada21d30dddeda9759388b780a2fe1ca799", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1a5888d4f097d0470e50a396083a5ada21d30dddeda9759388b780a2fe1ca799", kill_on_drop: false }` [INFO] [stdout] 1a5888d4f097d0470e50a396083a5ada21d30dddeda9759388b780a2fe1ca799 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4a39d2664bca50acd2a69a33530b9ab3aa27f3b60c591e622d729d889918914b [INFO] running `Command { std: "docker" "start" "-a" "4a39d2664bca50acd2a69a33530b9ab3aa27f3b60c591e622d729d889918914b", kill_on_drop: false }` [INFO] [stderr] Compiling either v1.6.1 [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] [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(test)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/lib.rs:2:1 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(associated_type_defaults)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/lib.rs:3:1 [INFO] [stdout] | [INFO] [stdout] 3 | #![feature(specialization)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/lib.rs:4:1 [INFO] [stdout] | [INFO] [stdout] 4 | #![feature(tool_attributes)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute [INFO] [stdout] | [INFO] [stdout] = help: the feature `tool_attributes` has been stable since 1.30.0 and no longer requires an attribute to enable [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes [INFO] [stdout] --> src/lib.rs:3:12 [INFO] [stdout] | [INFO] [stdout] 3 | #![feature(specialization)] [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(incomplete_features)]` on by default [INFO] [stdout] = note: see issue #31844 for more information [INFO] [stdout] = help: consider using `min_specialization` instead, which is more stable and complete [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `futures::future::AndThen` [INFO] [stdout] --> src/instances/future.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use futures::future::AndThen; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `applicative::Applicative` [INFO] [stdout] --> src/instances/result.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use applicative::Applicative; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/kinds.rs:69:68 [INFO] [stdout] | [INFO] [stdout] 69 | impl<'f_, A: 'f_, B: 'f_> IntoKind<'f_, FutureKind, A, B> for Box> [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 69 - impl<'f_, A: 'f_, B: 'f_> IntoKind<'f_, FutureKind, A, B> for Box> [INFO] [stdout] 69 + impl<'f_, A: 'f_, B: 'f_> IntoKind<'f_, FutureKind, A, B> for Box> [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/kind.rs:16:16 [INFO] [stdout] | [INFO] [stdout] 16 | Future(Box + 'f_>), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 16 - Future(Box + 'f_>), [INFO] [stdout] 16 + Future(Box + 'f_>), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/kinds.rs:159:20 [INFO] [stdout] | [INFO] [stdout] 159 | type Out = Box + 'f_>; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 159 - type Out = Box + 'f_>; [INFO] [stdout] 159 + type Out = Box + 'f_>; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/kinds.rs:160:27 [INFO] [stdout] | [INFO] [stdout] 160 | fn reify(self) -> Box + 'f_> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 160 - fn reify(self) -> Box + 'f_> { [INFO] [stdout] 160 + fn reify(self) -> Box + 'f_> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 4 previous errors; 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0554`. [INFO] [stdout] [INFO] [stderr] error: could not compile `rats` due to 5 previous errors; 7 warnings emitted [INFO] running `Command { std: "docker" "inspect" "4a39d2664bca50acd2a69a33530b9ab3aa27f3b60c591e622d729d889918914b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4a39d2664bca50acd2a69a33530b9ab3aa27f3b60c591e622d729d889918914b", kill_on_drop: false }` [INFO] [stdout] 4a39d2664bca50acd2a69a33530b9ab3aa27f3b60c591e622d729d889918914b