[INFO] updating cached repository Phrohdoh/rs-rocket-test
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Phrohdoh/rs-rocket-test
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Phrohdoh/rs-rocket-test" "work/ex/beta-1.38-1/sources/1.37.0/gh/Phrohdoh/rs-rocket-test"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Phrohdoh/rs-rocket-test'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Phrohdoh/rs-rocket-test" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Phrohdoh/rs-rocket-test"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Phrohdoh/rs-rocket-test'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] efc75f811d5a3024af05516d341af5e1b3d97387
[INFO] sha for GitHub repo Phrohdoh/rs-rocket-test: efc75f811d5a3024af05516d341af5e1b3d97387
[INFO] validating manifest of Phrohdoh/rs-rocket-test on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Phrohdoh/rs-rocket-test on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Phrohdoh/rs-rocket-test
[INFO] finished frobbing Phrohdoh/rs-rocket-test
[INFO] frobbed toml for Phrohdoh/rs-rocket-test written to work/ex/beta-1.38-1/sources/1.37.0/gh/Phrohdoh/rs-rocket-test/Cargo.toml
[INFO] started frobbing Phrohdoh/rs-rocket-test
[INFO] finished frobbing Phrohdoh/rs-rocket-test
[INFO] frobbed toml for Phrohdoh/rs-rocket-test written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Phrohdoh/rs-rocket-test/Cargo.toml
[INFO] crate Phrohdoh/rs-rocket-test already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing Phrohdoh/rs-rocket-test against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Phrohdoh/rs-rocket-test:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 6555df2a7586ce8162ae0973d5f585d21665e882010ee3a057fe1ebaf0aa4a34
[INFO] running `"docker" "start" "-a" "6555df2a7586ce8162ae0973d5f585d21665e882010ee3a057fe1ebaf0aa4a34"`
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]    Compiling rocket_codegen v0.1.5
[INFO] [stderr]    Compiling cookie v0.2.5
[INFO] [stderr]    Compiling term-painter v0.2.3
[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/rocket_codegen-0.1.5/build.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(slice_patterns)]
[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 `rocket_codegen`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "6555df2a7586ce8162ae0973d5f585d21665e882010ee3a057fe1ebaf0aa4a34"`
[INFO] running `"docker" "rm" "-f" "6555df2a7586ce8162ae0973d5f585d21665e882010ee3a057fe1ebaf0aa4a34"`
[INFO] [stdout] 6555df2a7586ce8162ae0973d5f585d21665e882010ee3a057fe1ebaf0aa4a34