[INFO] updating cached repository gegy1000/Oxide
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/gegy1000/Oxide
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/gegy1000/Oxide" "work/ex/beta-1.37-6/sources/1.36.0/gh/gegy1000/Oxide"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/gegy1000/Oxide'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/gegy1000/Oxide" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/gegy1000/Oxide"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/gegy1000/Oxide'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1a92463e64a33f0b9598be2a753530c966f5779e
[INFO] sha for GitHub repo gegy1000/Oxide: 1a92463e64a33f0b9598be2a753530c966f5779e
[INFO] validating manifest of gegy1000/Oxide 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 gegy1000/Oxide 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 gegy1000/Oxide
[INFO] finished frobbing gegy1000/Oxide
[INFO] frobbed toml for gegy1000/Oxide written to work/ex/beta-1.37-6/sources/1.36.0/gh/gegy1000/Oxide/Cargo.toml
[INFO] started frobbing gegy1000/Oxide
[INFO] finished frobbing gegy1000/Oxide
[INFO] frobbed toml for gegy1000/Oxide written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/gegy1000/Oxide/Cargo.toml
[INFO] crate gegy1000/Oxide 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 gegy1000/Oxide against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/gegy1000/Oxide:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] a2a5d83583848d62b22ed25ec73c1eab711ef7494bacfb849324ccb40157cd40
[INFO] running `"docker" "start" "-a" "a2a5d83583848d62b22ed25ec73c1eab711ef7494bacfb849324ccb40157cd40"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]    Compiling ascii v0.7.1
[INFO] [stderr]    Compiling cesu8 v1.1.0
[INFO] [stderr]    Compiling jni-sys v0.3.0
[INFO] [stderr]    Compiling libloading v0.5.0
[INFO] [stderr]    Compiling jni v0.10.1
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling error-chain v0.11.0
[INFO] [stderr]    Compiling combine v2.5.2
[INFO] [stderr]    Compiling oxide v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/main/rust/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(const_fn)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/main/rust/lib.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(concat_idents)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `oxide`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "a2a5d83583848d62b22ed25ec73c1eab711ef7494bacfb849324ccb40157cd40"`
[INFO] running `"docker" "rm" "-f" "a2a5d83583848d62b22ed25ec73c1eab711ef7494bacfb849324ccb40157cd40"`
[INFO] [stdout] a2a5d83583848d62b22ed25ec73c1eab711ef7494bacfb849324ccb40157cd40