[INFO] updating cached repository ptariche/rust-rocket-mongo-example
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ptariche/rust-rocket-mongo-example
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ptariche/rust-rocket-mongo-example" "work/ex/beta-1.37-6/sources/1.36.0/gh/ptariche/rust-rocket-mongo-example"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/ptariche/rust-rocket-mongo-example'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ptariche/rust-rocket-mongo-example" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ptariche/rust-rocket-mongo-example"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ptariche/rust-rocket-mongo-example'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a76f4111eb7fe8e7733df974e2b5241cd0514f9d
[INFO] sha for GitHub repo ptariche/rust-rocket-mongo-example: a76f4111eb7fe8e7733df974e2b5241cd0514f9d
[INFO] validating manifest of ptariche/rust-rocket-mongo-example on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ptariche/rust-rocket-mongo-example on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ptariche/rust-rocket-mongo-example
[INFO] finished frobbing ptariche/rust-rocket-mongo-example
[INFO] frobbed toml for ptariche/rust-rocket-mongo-example written to work/ex/beta-1.37-6/sources/1.36.0/gh/ptariche/rust-rocket-mongo-example/Cargo.toml
[INFO] started frobbing ptariche/rust-rocket-mongo-example
[INFO] finished frobbing ptariche/rust-rocket-mongo-example
[INFO] frobbed toml for ptariche/rust-rocket-mongo-example written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ptariche/rust-rocket-mongo-example/Cargo.toml
[INFO] crate ptariche/rust-rocket-mongo-example already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing ptariche/rust-rocket-mongo-example against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ptariche/rust-rocket-mongo-example:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 5277d48b6d92371d0b4582f2492fccf9b1852e6d65f8a04ac177c66df1300b69
[INFO] running `"docker" "start" "-a" "5277d48b6d92371d0b4582f2492fccf9b1852e6d65f8a04ac177c66df1300b69"`
[INFO] [stderr] warning: unused manifest key: development
[INFO] [stderr] warning: unused manifest key: production
[INFO] [stderr]    Compiling either v1.2.0
[INFO] [stderr]    Compiling version_check v0.1.3
[INFO] [stderr]    Compiling yansi v0.3.4
[INFO] [stderr]    Compiling untrusted v0.5.1
[INFO] [stderr]    Compiling linked-hash-map v0.4.2
[INFO] [stderr]    Compiling serde v1.0.15
[INFO] [stderr]    Compiling linked-hash-map v0.3.0
[INFO] [stderr]    Compiling hex v0.2.0
[INFO] [stderr] error[E0554]: #![feature] may not be used on the beta release channel
[INFO] [stderr]  --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/yansi-0.3.4/src/lib.rs:1:32
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![cfg_attr(feature="nightly", feature(const_atomic_bool_new))]
[INFO] [stderr]   |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]    Compiling ordermap v0.3.0
[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 `yansi`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "5277d48b6d92371d0b4582f2492fccf9b1852e6d65f8a04ac177c66df1300b69"`
[INFO] running `"docker" "rm" "-f" "5277d48b6d92371d0b4582f2492fccf9b1852e6d65f8a04ac177c66df1300b69"`
[INFO] [stdout] 5277d48b6d92371d0b4582f2492fccf9b1852e6d65f8a04ac177c66df1300b69