[INFO] fetching crate ak 0.1.1... [INFO] testing ak-0.1.1 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041 [INFO] extracting crate ak 0.1.1 into /workspace/builds/worker-6/source [INFO] validating manifest of crates.io crate ak 0.1.1 on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate ak 0.1.1 [INFO] finished tweaking crates.io crate ak 0.1.1 [INFO] tweaked toml for crates.io crate ak 0.1.1 written to /workspace/builds/worker-6/source/Cargo.toml [INFO] crate crates.io crate ak 0.1.1 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded ak-codegen v0.1.0 [INFO] [stderr] Downloaded futures-join-macro-preview v0.3.0-alpha.19 [INFO] [stderr] Downloaded futures-select-macro-preview v0.3.0-alpha.19 [INFO] [stderr] Downloaded ak-rt v0.1.0 [INFO] [stderr] Downloaded async-trait v0.1.13 [INFO] running `Command { std: "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" "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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] db73f13db6e5b625744349da5486a82aa3ec8149a67825a87cf6ded3614a96b5 [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" "db73f13db6e5b625744349da5486a82aa3ec8149a67825a87cf6ded3614a96b5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "db73f13db6e5b625744349da5486a82aa3ec8149a67825a87cf6ded3614a96b5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "db73f13db6e5b625744349da5486a82aa3ec8149a67825a87cf6ded3614a96b5", kill_on_drop: false }` [INFO] [stdout] db73f13db6e5b625744349da5486a82aa3ec8149a67825a87cf6ded3614a96b5 [INFO] running `Command { std: "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" "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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 35d9f2ff620316586c374a4ac9a451a14eb8d62de8bc12703c631078b09d0b55 [INFO] running `Command { std: "docker" "start" "-a" "35d9f2ff620316586c374a4ac9a451a14eb8d62de8bc12703c631078b09d0b55", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.5 [INFO] [stderr] Compiling syn v1.0.5 [INFO] [stderr] Compiling proc-macro-nested v0.1.3 [INFO] [stderr] Compiling futures-sink-preview v0.3.0-alpha.19 [INFO] [stderr] Compiling libc v0.2.62 [INFO] [stderr] Compiling slab v0.4.2 [INFO] [stderr] Compiling pin-utils v0.1.0-alpha.4 [INFO] [stderr] Compiling futures-io-preview v0.3.0-alpha.19 [INFO] [stderr] Compiling ak-rt v0.1.0 [INFO] [stderr] Compiling futures-channel-preview v0.3.0-alpha.19 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Compiling num_cpus v1.10.1 [INFO] [stderr] Compiling proc-macro-hack v0.5.10 [INFO] [stderr] Compiling async-trait v0.1.13 [INFO] [stderr] Compiling ak-codegen v0.1.0 [INFO] [stderr] Compiling futures-join-macro-preview v0.3.0-alpha.19 [INFO] [stderr] Compiling futures-select-macro-preview v0.3.0-alpha.19 [INFO] [stderr] Compiling futures-util-preview v0.3.0-alpha.19 [INFO] [stderr] Compiling futures-executor-preview v0.3.0-alpha.19 [INFO] [stderr] Compiling tokio v0.2.0-alpha.6 [INFO] [stderr] Compiling futures-preview v0.3.0-alpha.19 [INFO] [stderr] Compiling ak v0.1.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: the feature `type_alias_impl_trait` is incomplete and may not be safe to use and/or cause compiler crashes [INFO] [stdout] --> src/lib.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(type_alias_impl_trait, arbitrary_self_types, try_trait)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(incomplete_features)]` on by default [INFO] [stdout] = note: see issue #63063 for more information [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0635]: unknown feature `try_trait` [INFO] [stdout] --> src/lib.rs:1:57 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(type_alias_impl_trait, arbitrary_self_types, try_trait)] [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/context.rs:59:9 [INFO] [stdout] | [INFO] [stdout] 59 | tx.send(fut.await); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [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 E0635`. [INFO] [stdout] [INFO] [stderr] error: could not compile `ak` [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" "35d9f2ff620316586c374a4ac9a451a14eb8d62de8bc12703c631078b09d0b55", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "35d9f2ff620316586c374a4ac9a451a14eb8d62de8bc12703c631078b09d0b55", kill_on_drop: false }` [INFO] [stdout] 35d9f2ff620316586c374a4ac9a451a14eb8d62de8bc12703c631078b09d0b55