[INFO] cloning repository https://github.com/nyu-latency-labs/timer-example [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nyu-latency-labs/timer-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnyu-latency-labs%2Ftimer-example", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnyu-latency-labs%2Ftimer-example'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 5d564d5d64a317aaecca6ac1a39d3aeeaf712539 [INFO] checking nyu-latency-labs/timer-example against beta for pr-78714 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnyu-latency-labs%2Ftimer-example" "/workspace/builds/worker-2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/nyu-latency-labs/timer-example on toolchain beta [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/nyu-latency-labs/timer-example [INFO] finished tweaking git repo https://github.com/nyu-latency-labs/timer-example [INFO] tweaked toml for git repo https://github.com/nyu-latency-labs/timer-example written to /workspace/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/nyu-latency-labs/timer-example already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] warning: two git dependencies found for `https://github.com/nyu-latency-labs/tarpc.git` where one uses `branch = "master"` and the other doesn't; this will break in a future version of Cargo, so please ensure the dependency forms are consistent [INFO] [stderr] warning: two git dependencies found for `https://github.com/nyu-latency-labs/tarpc.git` where one uses `branch = "master"` and the other doesn't; this will break in a future version of Cargo, so please ensure the dependency forms are consistent [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded tokio-sync v0.1.6 [INFO] [stderr] Downloaded tokio-executor v0.1.8 [INFO] [stderr] Downloaded log v0.4.8 [INFO] [stderr] Downloaded tokio-io v0.1.12 [INFO] [stderr] Downloaded rand_xorshift v0.1.1 [INFO] [stderr] Downloaded tokio-current-thread v0.1.6 [INFO] [stderr] Downloaded serde v1.0.99 [INFO] [stderr] Downloaded pin-utils v0.1.0-alpha.4 [INFO] [stderr] Downloaded c2-chacha v0.2.2 [INFO] [stderr] Downloaded async-bincode v0.4.9 [INFO] [stderr] Downloaded lock_api v0.3.1 [INFO] [stderr] Downloaded unicode-width v0.1.6 [INFO] [stderr] Downloaded atty v0.2.13 [INFO] [stderr] Downloaded tokio-uds v0.2.5 [INFO] [stderr] Downloaded parking_lot_core v0.6.2 [INFO] [stderr] Downloaded vec_map v0.8.1 [INFO] [stderr] Downloaded proc-macro-nested v0.1.3 [INFO] [stderr] Downloaded stable_deref_trait v1.1.1 [INFO] [stderr] Downloaded strsim v0.8.0 [INFO] [stderr] Downloaded parking_lot v0.9.0 [INFO] [stderr] Downloaded syn v1.0.5 [INFO] [stderr] Downloaded clap 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[stderr] Downloaded wasi v0.5.0 [INFO] [stderr] Downloaded rand v0.7.0 [INFO] [stderr] Downloaded serde_derive v1.0.99 [INFO] [stderr] Downloaded proc-macro2 v1.0.1 [INFO] [stderr] Downloaded quote v1.0.2 [INFO] [stderr] Downloaded unicode-xid v0.2.0 [INFO] [stderr] Downloaded itertools v0.8.0 [INFO] [stderr] Downloaded proc-macro2 v0.4.30 [INFO] [stderr] Downloaded quote v0.6.13 [INFO] [stderr] Downloaded syn v0.15.44 [INFO] [stderr] Downloaded redox_syscall v0.1.56 [INFO] [stderr] Downloaded time v0.1.42 [INFO] [stderr] Downloaded tokio-fs v0.1.6 [INFO] [stderr] Downloaded tokio-tcp v0.1.3 [INFO] [stderr] Downloaded arrayvec v0.4.11 [INFO] [stderr] Downloaded memoffset v0.5.1 [INFO] [stderr] Downloaded scopeguard v1.0.0 [INFO] [stderr] Downloaded crossbeam-epoch v0.7.2 [INFO] [stderr] Downloaded tokio-threadpool v0.1.15 [INFO] [stderr] Downloaded tokio-timer v0.2.11 [INFO] [stderr] Downloaded tokio-udp v0.1.3 [INFO] [stderr] Downloaded mio-uds v0.6.7 [INFO] [stderr] Downloaded tokio-codec v0.1.1 [INFO] [stderr] Downloaded net2 v0.2.33 [INFO] [stderr] Downloaded mio v0.6.19 [INFO] [stderr] Downloaded num_cpus v1.10.1 [INFO] [stderr] Downloaded bitflags v1.1.0 [INFO] [stderr] Downloaded fuchsia-cprng v0.1.1 [INFO] [stderr] Downloaded rdrand v0.4.0 [INFO] [stderr] Downloaded autocfg v0.1.6 [INFO] [stderr] Downloaded rand_pcg v0.1.2 [INFO] [stderr] Downloaded slab v0.4.2 [INFO] [stderr] Downloaded bytes v0.4.12 [INFO] [stderr] Downloaded smallvec v0.6.10 [INFO] [stderr] Downloaded futures v0.1.28 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b947e91c9920e2ca4743beb1d02558cbf729990822916678a05c42bc8bfdc2ef [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" "b947e91c9920e2ca4743beb1d02558cbf729990822916678a05c42bc8bfdc2ef", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b947e91c9920e2ca4743beb1d02558cbf729990822916678a05c42bc8bfdc2ef", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b947e91c9920e2ca4743beb1d02558cbf729990822916678a05c42bc8bfdc2ef", kill_on_drop: false }` [INFO] [stdout] b947e91c9920e2ca4743beb1d02558cbf729990822916678a05c42bc8bfdc2ef [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--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] cf579ee33aa7d3c3919f94207334fa24afd92687fa75c2444932bb1d4abdd8b7 [INFO] running `Command { std: "docker" "start" "-a" "cf579ee33aa7d3c3919f94207334fa24afd92687fa75c2444932bb1d4abdd8b7", kill_on_drop: false }` [INFO] [stderr] warning: two git dependencies found for `https://github.com/nyu-latency-labs/tarpc.git` where one uses `branch = "master"` and the other doesn't; this will break in a future version of Cargo, so please ensure the dependency forms are consistent [INFO] [stderr] warning: two git dependencies found for `https://github.com/nyu-latency-labs/tarpc.git` where one uses `branch = "master"` and the other doesn't; this will break in a future version of Cargo, so please ensure the dependency forms are consistent [INFO] [stderr] warning: two git dependencies found for `https://github.com/nyu-latency-labs/tarpc.git` where one uses `branch = "master"` and the other doesn't; this will break in a future version of Cargo, so please ensure the dependency forms are consistent [INFO] [stderr] warning: two git dependencies found for `https://github.com/nyu-latency-labs/tarpc.git` where one uses `branch = "master"` and the other doesn't; this will break in a future version of Cargo, so please ensure the dependency forms are consistent [INFO] [stderr] Checking futures-core-preview v0.3.0-alpha.18 [INFO] [stderr] Checking futures-io-preview v0.3.0-alpha.18 [INFO] [stderr] Compiling bincode v1.1.4 [INFO] [stderr] Compiling syn v1.0.5 [INFO] [stderr] Checking parking_lot v0.9.0 [INFO] [stderr] Compiling tarpc-plugins v0.5.1 (https://github.com/nyu-latency-labs/tarpc.git#537446a5) [INFO] [stderr] Checking tokio-udp v0.1.3 [INFO] [stderr] Checking futures-sink-preview v0.3.0-alpha.18 [INFO] [stderr] Checking futures-channel-preview v0.3.0-alpha.18 [INFO] [stderr] Checking once_cell v0.2.7 [INFO] [stderr] Checking tokio v0.1.22 [INFO] [stderr] Compiling proc-macro-hack v0.5.9 [INFO] [stderr] Compiling serde_derive v1.0.99 [INFO] [stderr] Compiling futures-join-macro-preview v0.3.0-alpha.18 [INFO] [stderr] Compiling futures-select-macro-preview v0.3.0-alpha.18 [INFO] [stderr] Checking futures-util-preview v0.3.0-alpha.18 [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-util-preview-0.3.0-alpha.18/src/lib.rs:4:38 [INFO] [stdout] | [INFO] [stdout] 4 | #![cfg_attr(feature = "async-await", feature(async_await))] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0554`. [INFO] [stdout] [INFO] [stderr] error: could not compile `futures-util-preview` [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" "cf579ee33aa7d3c3919f94207334fa24afd92687fa75c2444932bb1d4abdd8b7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cf579ee33aa7d3c3919f94207334fa24afd92687fa75c2444932bb1d4abdd8b7", kill_on_drop: false }` [INFO] [stdout] cf579ee33aa7d3c3919f94207334fa24afd92687fa75c2444932bb1d4abdd8b7