[INFO] updating cached repository jakewilkins/airnav-redirect
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jakewilkins/airnav-redirect
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jakewilkins/airnav-redirect" "work/ex/beta-1.38-1/sources/1.37.0/gh/jakewilkins/airnav-redirect"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/jakewilkins/airnav-redirect'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jakewilkins/airnav-redirect" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jakewilkins/airnav-redirect"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jakewilkins/airnav-redirect'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7565ad8a80bf690b56db3404458c285d4850456a
[INFO] sha for GitHub repo jakewilkins/airnav-redirect: 7565ad8a80bf690b56db3404458c285d4850456a
[INFO] validating manifest of jakewilkins/airnav-redirect 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 jakewilkins/airnav-redirect 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 jakewilkins/airnav-redirect
[INFO] finished frobbing jakewilkins/airnav-redirect
[INFO] frobbed toml for jakewilkins/airnav-redirect written to work/ex/beta-1.38-1/sources/1.37.0/gh/jakewilkins/airnav-redirect/Cargo.toml
[INFO] started frobbing jakewilkins/airnav-redirect
[INFO] finished frobbing jakewilkins/airnav-redirect
[INFO] frobbed toml for jakewilkins/airnav-redirect written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jakewilkins/airnav-redirect/Cargo.toml
[INFO] crate jakewilkins/airnav-redirect 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing jakewilkins/airnav-redirect 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-1/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/jakewilkins/airnav-redirect:/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] 4ceee585d24fc5847f9404b40285562ef17b8f77531e73f575ae49642c212012
[INFO] running `"docker" "start" "-a" "4ceee585d24fc5847f9404b40285562ef17b8f77531e73f575ae49642c212012"`
[INFO] [stderr]    Compiling state v0.2.0
[INFO] [stderr]    Compiling rocket v0.2.4
[INFO] [stderr]    Compiling rocket_codegen v0.2.4
[INFO] [stderr]    Compiling hyper v0.10.6
[INFO] [stderr]    Compiling cookie v0.6.1
[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/state-0.2.0/src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(const_fn)]
[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 `state`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "4ceee585d24fc5847f9404b40285562ef17b8f77531e73f575ae49642c212012"`
[INFO] running `"docker" "rm" "-f" "4ceee585d24fc5847f9404b40285562ef17b8f77531e73f575ae49642c212012"`
[INFO] [stdout] 4ceee585d24fc5847f9404b40285562ef17b8f77531e73f575ae49642c212012