[INFO] crate locustdb 0.2.1 is already in cache
[INFO] testing locustdb-0.2.1 against beta-2019-09-28 for beta-1.39-1
[INFO] extracting crate locustdb 0.2.1 into work/builds/worker-0/source
[INFO] validating manifest of crates.io crate locustdb 0.2.1 on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate locustdb 0.2.1
[INFO] finished tweaking crates.io crate locustdb 0.2.1
[INFO] tweaked toml for crates.io crate locustdb 0.2.1 written to work/builds/worker-0/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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-2019-09-28" "build" "--frozen"`
[INFO] [stdout] ffc21df2758a39c8a341baf9e9f14c27db84db42e998d109514e0faefe5fa56c
[INFO] running `"docker" "start" "-a" "ffc21df2758a39c8a341baf9e9f14c27db84db42e998d109514e0faefe5fa56c"`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling bitflags v0.4.0
[INFO] [stderr]    Compiling encode_unicode v0.1.3
[INFO] [stderr]    Compiling locustdb v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling hashbrown v0.5.0
[INFO] [stderr]    Compiling seahash v3.0.6
[INFO] [stderr]    Compiling std-semaphore v0.1.0
[INFO] [stderr]    Compiling bit-vec v0.4.4
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling num_cpus v1.10.1
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling nom v3.2.1
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling aliasmethod v0.1.0
[INFO] [stderr]    Compiling nix v0.5.1
[INFO] [stderr]    Compiling futures-core v0.2.1
[INFO] [stderr]    Compiling itertools v0.5.10
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]    Compiling bstr v0.2.8
[INFO] [stderr]    Compiling csv-core v0.1.6
[INFO] [stderr]    Compiling chrono v0.4.9
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling futures-channel v0.2.1
[INFO] [stderr]    Compiling futures-io v0.2.1
[INFO] [stderr]    Compiling lru v0.1.17
[INFO] [stderr]    Compiling futures-sink v0.2.1
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling futures-util v0.2.1
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling csv v1.1.1
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling sqlparser v0.2.4
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]    Compiling futures-executor v0.2.1
[INFO] [stderr]    Compiling rustyline v1.0.0
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling locustdb-derive v0.1.0
[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/locustdb-derive-0.1.0/src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(proc_macro_hygiene, proc_macro_diagnostic)]
[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 `locustdb-derive`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "ffc21df2758a39c8a341baf9e9f14c27db84db42e998d109514e0faefe5fa56c"`
[INFO] running `"docker" "rm" "-f" "ffc21df2758a39c8a341baf9e9f14c27db84db42e998d109514e0faefe5fa56c"`
[INFO] [stdout] ffc21df2758a39c8a341baf9e9f14c27db84db42e998d109514e0faefe5fa56c