[INFO] fetching crate futures-await 0.1.1... [INFO] testing futures-await-0.1.1 against try#d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2 for pr-86479 [INFO] extracting crate futures-await 0.1.1 into /workspace/builds/worker-10/source [INFO] validating manifest of crates.io crate futures-await 0.1.1 on toolchain d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate futures-await 0.1.1 [INFO] finished tweaking crates.io crate futures-await 0.1.1 [INFO] tweaked toml for crates.io crate futures-await 0.1.1 written to /workspace/builds/worker-10/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded tokio-sync v0.1.8 [INFO] [stderr] Downloaded tokio v0.1.22 [INFO] [stderr] Downloaded tokio-fs v0.1.7 [INFO] [stderr] Downloaded scoped-tls v0.1.2 [INFO] [stderr] Downloaded tokio-current-thread v0.1.7 [INFO] [stderr] Downloaded crossbeam-deque v0.7.4 [INFO] [stderr] Downloaded tokio-core v0.1.18 [INFO] [stderr] Downloaded tokio-uds v0.2.7 [INFO] [stderr] Downloaded tokio-tcp v0.1.4 [INFO] [stderr] Downloaded tokio-threadpool v0.1.18 [INFO] [stderr] Downloaded tokio-udp v0.1.6 [INFO] [stderr] Downloaded tokio-codec v0.1.2 [INFO] [stderr] Downloaded tokio-timer v0.2.13 [INFO] [stderr] Downloaded tokio-reactor v0.1.12 [INFO] [stderr] Downloaded tokio-executor v0.1.10 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--no-deps" "--format-version=1", 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] bf6127bb5b2c6d971dfa1f093945cce8e5de68981db84c77057b12251c39d614 [INFO] running `Command { std: "docker" "start" "-a" "bf6127bb5b2c6d971dfa1f093945cce8e5de68981db84c77057b12251c39d614", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "bf6127bb5b2c6d971dfa1f093945cce8e5de68981db84c77057b12251c39d614", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bf6127bb5b2c6d971dfa1f093945cce8e5de68981db84c77057b12251c39d614", kill_on_drop: false }` [INFO] [stdout] bf6127bb5b2c6d971dfa1f093945cce8e5de68981db84c77057b12251c39d614 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 23d6be50df7b32907264299800a4b0e731db7aef84abbcb03aed61f2c34bdd64 [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" "23d6be50df7b32907264299800a4b0e731db7aef84abbcb03aed61f2c34bdd64", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Compiling syn v0.14.9 [INFO] [stderr] Compiling futures-await-async-macro v0.1.4 [INFO] [stderr] Compiling futures-await v0.1.1 (/opt/rustwide/workdir) [INFO] [stdout] error[E0557]: feature has been removed [INFO] [stdout] --> src/lib.rs:17:12 [INFO] [stdout] | [INFO] [stdout] 17 | #![feature(on_unimplemented)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^ feature has been removed [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: this is an internal attribute that will never be stable [INFO] [stdout] --> src/lib.rs:64:5 [INFO] [stdout] | [INFO] [stdout] 64 | / #[rustc_on_unimplemented = "async functions must return a `Result` or \ [INFO] [stdout] 65 | | a typedef of `Result`"] [INFO] [stdout] | |_______________________________________________________^ [INFO] [stdout] | [INFO] [stdout] = help: add `#![feature(rustc_attrs)]` to the crate attributes to enable [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: ambiguous associated item [INFO] [stdout] --> src/lib.rs:76:40 [INFO] [stdout] | [INFO] [stdout] 76 | fn into_result(self) -> Result { self } [INFO] [stdout] | ^^^^^^^^ help: use fully-qualified syntax: ` as IsResult>::Ok` [INFO] [stdout] | [INFO] [stdout] = note: `#[deny(ambiguous_associated_items)]` 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 a future release! [INFO] [stdout] = note: for more information, see issue #57644 [INFO] [stdout] note: `Ok` could refer to the variant defined here [INFO] [stdout] note: `Ok` could also refer to the associated type defined here [INFO] [stdout] --> src/lib.rs:67:9 [INFO] [stdout] | [INFO] [stdout] 67 | type Ok; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: ambiguous associated item [INFO] [stdout] --> src/lib.rs:76:50 [INFO] [stdout] | [INFO] [stdout] 76 | fn into_result(self) -> Result { self } [INFO] [stdout] | ^^^^^^^^^ help: use fully-qualified syntax: ` as IsResult>::Err` [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #57644 [INFO] [stdout] note: `Err` could refer to the variant defined here [INFO] [stdout] note: `Err` could also refer to the associated type defined here [INFO] [stdout] --> src/lib.rs:68:9 [INFO] [stdout] | [INFO] [stdout] 68 | type Err; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 4 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0557, E0658. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0557`. [INFO] [stdout] [INFO] [stderr] error: could not compile `futures-await` due to 5 previous errors [INFO] running `Command { std: "docker" "inspect" "23d6be50df7b32907264299800a4b0e731db7aef84abbcb03aed61f2c34bdd64", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "23d6be50df7b32907264299800a4b0e731db7aef84abbcb03aed61f2c34bdd64", kill_on_drop: false }` [INFO] [stdout] 23d6be50df7b32907264299800a4b0e731db7aef84abbcb03aed61f2c34bdd64