[INFO] cloning repository https://github.com/pka/nupsql
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pka/nupsql" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpka%2Fnupsql"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpka%2Fnupsql'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ea5e6c05384f6eeebcfaf4aa7ff21b287725624a
[INFO] checking pka/nupsql against beta-2019-10-27 for pr-65897
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpka%2Fnupsql" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pka/nupsql on toolchain beta-2019-10-27
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/pka/nupsql
[INFO] finished tweaking git repo https://github.com/pka/nupsql
[INFO] tweaked toml for git repo https://github.com/pka/nupsql written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/pka/nupsql already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=allow" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-10-27" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] abfb20f7416210b574e199845b0533e839a9c2a56788cbc632a1a2dc69cae628
[INFO] running `"docker" "start" "-a" "abfb20f7416210b574e199845b0533e839a9c2a56788cbc632a1a2dc69cae628"`
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]     Checking futures-io-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling curl v0.4.24
[INFO] [stderr]    Compiling isahc v0.7.3
[INFO] [stderr]     Checking ord_subset v3.1.1
[INFO] [stderr]     Checking result v1.0.0
[INFO] [stderr]     Checking xmlparser v0.10.0
[INFO] [stderr]     Checking encode_unicode v0.3.6
[INFO] [stderr]     Checking unicode-xid v0.2.0
[INFO] [stderr]     Checking sublime_fuzzy v0.5.0
[INFO] [stderr]     Checking natural v0.3.0
[INFO] [stderr]     Checking dunce v1.0.0
[INFO] [stderr]     Checking byte-unit v3.0.3
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking shellexpand v1.0.0
[INFO] [stderr]     Checking pretty-hex v0.1.1
[INFO] [stderr]    Compiling num-bigint v0.2.3
[INFO] [stderr]     Checking app_dirs v1.2.1
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking tracing-core v0.1.6
[INFO] [stderr]     Checking memchr v2.2.1
[INFO] [stderr]     Checking crossterm_utils v0.2.4
[INFO] [stderr]     Checking term_size v0.3.1
[INFO] [stderr]     Checking subprocess v0.1.18
[INFO] [stderr]    Compiling num_cpus v1.10.1
[INFO] [stderr]     Checking sluice v0.4.2
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking term v0.5.2
[INFO] [stderr]    Compiling enum-utils-from-str v0.1.0
[INFO] [stderr]     Checking roxmltree v0.7.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling serde_derive_internals v0.24.1
[INFO] [stderr]     Checking lexical-core v0.4.6
[INFO] [stderr]     Checking crossterm_screen v0.2.5
[INFO] [stderr]     Checking crossterm_cursor v0.2.6
[INFO] [stderr]     Checking crossterm_style v0.4.1
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]     Checking csv-core v0.1.6
[INFO] [stderr]     Checking postgres-protocol v0.4.1 (https://github.com/sfackler/rust-postgres/?rev=5283ad4#5283ad4a)
[INFO] [stderr]     Checking crossterm_input v0.3.9
[INFO] [stderr]     Checking crossterm_terminal v0.2.6
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]    Compiling jobserver v0.1.17
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking tokio-io v0.2.0-alpha.4
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]     Checking render-tree v0.1.1
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking crossterm v0.10.2
[INFO] [stderr]    Compiling cc v1.0.45
[INFO] [stderr]     Checking tokio-codec v0.2.0-alpha.4
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking nom v5.0.1
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]    Compiling openssl-sys v0.9.49
[INFO] [stderr]    Compiling curl-sys v0.4.21
[INFO] [stderr]    Compiling libsqlite3-sys v0.16.0
[INFO] [stderr]    Compiling decimal v2.0.4
[INFO] [stderr]    Compiling libgit2-sys v0.9.1
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking serde-hjson v0.9.1
[INFO] [stderr]     Checking backtrace v0.3.38
[INFO] [stderr]     Checking rustyline v5.0.3
[INFO] [stderr]     Checking ctrlc v3.1.3
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking which v2.0.1
[INFO] [stderr]    Compiling enum-utils v0.1.1
[INFO] [stderr]     Checking nom_locate v1.0.0
[INFO] [stderr]     Checking git2 v0.10.1
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]    Compiling proc-macro-hack v0.5.9
[INFO] [stderr]    Compiling tracing-attributes v0.1.3
[INFO] [stderr]    Compiling pin-project-internal v0.4.0-alpha.5
[INFO] [stderr]    Compiling tokio-macros v0.2.0-alpha.4
[INFO] [stderr]    Compiling futures-async-stream-macro v0.1.0-alpha.5
[INFO] [stderr]    Compiling derive-new v0.5.8
[INFO] [stderr]    Compiling getset v0.0.8
[INFO] [stderr]     Checking tracing v0.1.9
[INFO] [stderr]    Compiling futures-select-macro-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling futures-join-macro-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking pin-project v0.4.0-alpha.5
[INFO] [stderr]     Checking futures-async-stream v0.1.0-alpha.5
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-async-stream-0.1.0-alpha.5/src/lib.rs:194:1
[INFO] [stderr]     |
[INFO] [stderr] 194 | #![feature(gen_future, generator_trait)]
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `futures-async-stream`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "abfb20f7416210b574e199845b0533e839a9c2a56788cbc632a1a2dc69cae628"`
[INFO] running `"docker" "rm" "-f" "abfb20f7416210b574e199845b0533e839a9c2a56788cbc632a1a2dc69cae628"`
[INFO] [stdout] abfb20f7416210b574e199845b0533e839a9c2a56788cbc632a1a2dc69cae628