[INFO] cloning repository https://github.com/jtgeibel/jtg-twitter-streams [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jtgeibel/jtg-twitter-streams" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjtgeibel%2Fjtg-twitter-streams", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjtgeibel%2Fjtg-twitter-streams'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 0006dd2f4db9020fc70f5f3141a69323d057e155 [INFO] documenting jtgeibel/jtg-twitter-streams against beta-2020-08-29 for beta-1.47-rustdoc-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjtgeibel%2Fjtg-twitter-streams" "/workspace/builds/worker-11/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/jtgeibel/jtg-twitter-streams on toolchain beta-2020-08-29 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/jtgeibel/jtg-twitter-streams [INFO] finished tweaking git repo https://github.com/jtgeibel/jtg-twitter-streams [INFO] tweaked toml for git repo https://github.com/jtgeibel/jtg-twitter-streams written to /workspace/builds/worker-11/source/Cargo.toml [INFO] crate git repo https://github.com/jtgeibel/jtg-twitter-streams already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded pin-project v0.4.0-alpha.11 [INFO] [stderr] Downloaded tokio-codec v0.2.0-alpha.5 [INFO] [stderr] Downloaded h2 v0.2.0-alpha.2 [INFO] [stderr] Downloaded futures-select-macro-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded tokio-tls v0.3.0-alpha.5 [INFO] [stderr] Downloaded tokio-fs v0.2.0-alpha.5 [INFO] [stderr] Downloaded tokio-executor v0.2.0-alpha.5 [INFO] [stderr] Downloaded sentiment v0.1.1 [INFO] [stderr] Downloaded pin-project v0.3.5 [INFO] [stderr] Downloaded tokio-macros v0.2.0-alpha.5 [INFO] [stderr] Downloaded tokio-net v0.2.0-alpha.5 [INFO] [stderr] Downloaded http-body v0.2.0-alpha.1 [INFO] [stderr] Downloaded tower-make v0.3.0-alpha.2 [INFO] [stderr] Downloaded pin-project-internal v0.4.0-alpha.11 [INFO] [stderr] Downloaded tokio-io v0.2.0-alpha.5 [INFO] [stderr] Downloaded futures-join-macro-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded tokio-timer v0.3.0-alpha.5 [INFO] [stderr] Downloaded tower-service v0.3.0-alpha.1 [INFO] [stderr] Downloaded hyper v0.13.0-alpha.2 [INFO] [stderr] Downloaded tokio v0.2.0-alpha.5 [INFO] [stderr] Downloaded tokio-sync v0.2.0-alpha.5 [INFO] [stderr] Downloaded twitter-stream v0.10.0-alpha.2 [INFO] [stderr] Downloaded oauth1-request-derive v0.3.1 [INFO] [stderr] Downloaded oauth1-request v0.3.0 [INFO] [stderr] Downloaded async-compression v0.1.0-alpha.5 [INFO] [stderr] Downloaded hyper-tls v0.4.0-alpha.2 [INFO] [stderr] Downloaded plotters v0.2.11 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 70e3717ebb78a5b11b038e92358298dd0566a510b66c4e128627ab4fad1d3fd0 [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" "70e3717ebb78a5b11b038e92358298dd0566a510b66c4e128627ab4fad1d3fd0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "70e3717ebb78a5b11b038e92358298dd0566a510b66c4e128627ab4fad1d3fd0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "70e3717ebb78a5b11b038e92358298dd0566a510b66c4e128627ab4fad1d3fd0", kill_on_drop: false }` [INFO] [stdout] 70e3717ebb78a5b11b038e92358298dd0566a510b66c4e128627ab4fad1d3fd0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "RUSTDOCFLAGS=--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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2ced7327bbad9358d498b5e1266d855c1185df71a77326667a61e3711ff3cd7b [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" "2ced7327bbad9358d498b5e1266d855c1185df71a77326667a61e3711ff3cd7b", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling syn v1.0.7 [INFO] [stderr] Checking futures-core-preview v0.3.0-alpha.18 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Checking futures-io-preview v0.3.0-alpha.18 [INFO] [stderr] Compiling pin-project-internal v0.4.0-alpha.11 [INFO] [stderr] Compiling serde v1.0.102 [INFO] [stderr] Compiling arrayvec v0.4.12 [INFO] [stderr] Checking tower-service v0.3.0-alpha.1 [INFO] [stderr] Checking subtle v1.0.0 [INFO] [stderr] Checking ucd-util v0.1.5 [INFO] [stderr] Compiling palette v0.4.1 [INFO] [stderr] Checking utf8-ranges v1.0.4 [INFO] [stderr] Checking itoa v0.3.4 [INFO] [stderr] Checking svg v0.6.0 [INFO] [stderr] Checking dotenv v0.15.0 [INFO] [stderr] Compiling num-traits v0.2.8 [INFO] [stderr] Compiling num-rational v0.2.2 [INFO] [stderr] Checking block-padding v0.1.4 [INFO] [stderr] Checking tracing-core v0.1.7 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking regex-syntax v0.5.6 [INFO] [stderr] Checking aho-corasick v0.6.10 [INFO] [stderr] Checking crossbeam-utils v0.7.0 [INFO] [stderr] Checking getrandom v0.1.13 [INFO] [stderr] Checking num_cpus v1.11.0 [INFO] [stderr] Checking memmap v0.7.0 [INFO] [stderr] Checking dirs v1.0.5 [INFO] [stderr] Compiling memoffset v0.5.2 [INFO] [stderr] Compiling expat-sys v2.1.6 [INFO] [stderr] Checking flate2 v1.0.12 [INFO] [stderr] Checking png v0.15.0 [INFO] [stderr] Checking futures-sink-preview v0.3.0-alpha.18 [INFO] [stderr] Checking bytes v0.4.12 [INFO] [stderr] Checking regex v1.3.1 [INFO] [stderr] Checking mio v0.6.19 [INFO] [stderr] Checking servo-freetype-sys v4.0.5 [INFO] [stderr] Checking openssl v0.10.25 [INFO] [stderr] Checking crypto-mac v0.7.0 [INFO] [stderr] Checking block-buffer v0.7.3 [INFO] [stderr] Compiling servo-fontconfig-sys v4.0.7 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking futures-channel-preview v0.3.0-alpha.18 [INFO] [stderr] Checking freetype v0.4.1 [INFO] [stderr] Checking hmac v0.7.1 [INFO] [stderr] Checking sha-1 v0.8.1 [INFO] [stderr] Checking rand_chacha v0.2.1 [INFO] [stderr] Checking http v0.1.19 [INFO] [stderr] Checking string v0.2.1 [INFO] [stderr] Checking servo-fontconfig v0.4.0 [INFO] [stderr] Checking rand v0.7.2 [INFO] [stderr] Checking crossbeam-epoch v0.8.0 [INFO] [stderr] Checking mio-uds v0.6.7 [INFO] [stderr] Checking crossbeam-deque v0.7.2 [INFO] [stderr] Checking env_logger v0.7.1 [INFO] [stderr] Checking num-integer v0.1.41 [INFO] [stderr] Checking euclid v0.20.3 [INFO] [stderr] Checking num-traits v0.1.43 [INFO] [stderr] Checking approx v0.3.2 [INFO] [stderr] Checking ordered-float v1.0.2 [INFO] [stderr] Checking serde_json v0.9.10 [INFO] [stderr] Checking rusttype v0.8.1 [INFO] [stderr] Checking num-iter v0.1.39 [INFO] [stderr] Checking chrono v0.4.9 [INFO] [stderr] Checking regex v0.2.11 [INFO] [stderr] Checking image v0.22.3 [INFO] [stderr] Checking lyon_geom v0.14.1 [INFO] [stderr] Checking http-body v0.2.0-alpha.1 [INFO] [stderr] Checking native-tls v0.2.3 [INFO] [stderr] Checking sentiment v0.1.1 [INFO] [stderr] Checking lyon_path v0.14.0 [INFO] [stderr] Checking font-kit v0.4.0 [INFO] [stderr] Checking plotters v0.2.11 [INFO] [stderr] Checking serde_json v1.0.41 [INFO] [stderr] Compiling toml v0.5.5 [INFO] [stderr] Compiling proc-macro-crate v0.1.4 [INFO] [stderr] Compiling proc-macro-hack v0.5.11 [INFO] [stderr] Compiling tracing-attributes v0.1.5 [INFO] [stderr] Compiling tokio-macros v0.2.0-alpha.5 [INFO] [stderr] Compiling pin-project v0.3.5 [INFO] [stderr] Compiling oauth1-request-derive v0.3.1 [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 tracing v0.1.10 [INFO] [stderr] Checking oauth1-request v0.3.0 [INFO] [stderr] Checking pin-project v0.4.0-alpha.11 [INFO] [stderr] Checking tokio-io v0.2.0-alpha.5 [INFO] [stderr] Checking futures-util-preview v0.3.0-alpha.18 [INFO] [stderr] Checking tokio-codec v0.2.0-alpha.5 [INFO] [stderr] Checking tower-make v0.3.0-alpha.2 [INFO] [stderr] Checking tokio-tls v0.3.0-alpha.5 [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] running `Command { std: "docker" "inspect" "2ced7327bbad9358d498b5e1266d855c1185df71a77326667a61e3711ff3cd7b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2ced7327bbad9358d498b5e1266d855c1185df71a77326667a61e3711ff3cd7b", kill_on_drop: false }` [INFO] [stdout] 2ced7327bbad9358d498b5e1266d855c1185df71a77326667a61e3711ff3cd7b