[INFO] updating cached repository intrepion/project-x-rock-paper-scissors-x-json-rpc-x-server-x-rust-x-rocket
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/intrepion/project-x-rock-paper-scissors-x-json-rpc-x-server-x-rust-x-rocket
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/intrepion/project-x-rock-paper-scissors-x-json-rpc-x-server-x-rust-x-rocket" "work/ex/beta-1.38-1/sources/1.37.0/gh/intrepion/project-x-rock-paper-scissors-x-json-rpc-x-server-x-rust-x-rocket"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/intrepion/project-x-rock-paper-scissors-x-json-rpc-x-server-x-rust-x-rocket'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/intrepion/project-x-rock-paper-scissors-x-json-rpc-x-server-x-rust-x-rocket" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/intrepion/project-x-rock-paper-scissors-x-json-rpc-x-server-x-rust-x-rocket"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/intrepion/project-x-rock-paper-scissors-x-json-rpc-x-server-x-rust-x-rocket'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 508bb3a0c1fa45ff05bfdd8059a9698337531fd4
[INFO] sha for GitHub repo intrepion/project-x-rock-paper-scissors-x-json-rpc-x-server-x-rust-x-rocket: 508bb3a0c1fa45ff05bfdd8059a9698337531fd4
[INFO] validating manifest of intrepion/project-x-rock-paper-scissors-x-json-rpc-x-server-x-rust-x-rocket 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 intrepion/project-x-rock-paper-scissors-x-json-rpc-x-server-x-rust-x-rocket 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 intrepion/project-x-rock-paper-scissors-x-json-rpc-x-server-x-rust-x-rocket
[INFO] finished frobbing intrepion/project-x-rock-paper-scissors-x-json-rpc-x-server-x-rust-x-rocket
[INFO] frobbed toml for intrepion/project-x-rock-paper-scissors-x-json-rpc-x-server-x-rust-x-rocket written to work/ex/beta-1.38-1/sources/1.37.0/gh/intrepion/project-x-rock-paper-scissors-x-json-rpc-x-server-x-rust-x-rocket/Cargo.toml
[INFO] started frobbing intrepion/project-x-rock-paper-scissors-x-json-rpc-x-server-x-rust-x-rocket
[INFO] finished frobbing intrepion/project-x-rock-paper-scissors-x-json-rpc-x-server-x-rust-x-rocket
[INFO] frobbed toml for intrepion/project-x-rock-paper-scissors-x-json-rpc-x-server-x-rust-x-rocket written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/intrepion/project-x-rock-paper-scissors-x-json-rpc-x-server-x-rust-x-rocket/Cargo.toml
[INFO] crate intrepion/project-x-rock-paper-scissors-x-json-rpc-x-server-x-rust-x-rocket 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 intrepion/project-x-rock-paper-scissors-x-json-rpc-x-server-x-rust-x-rocket against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/intrepion/project-x-rock-paper-scissors-x-json-rpc-x-server-x-rust-x-rocket:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 36bfd388f0cedbf5e4080a095043324e8ff5af2849626a3e382dcc07ff3c05de
[INFO] running `"docker" "start" "-a" "36bfd388f0cedbf5e4080a095043324e8ff5af2849626a3e382dcc07ff3c05de"`
[INFO] [stderr]    Compiling rocket_codegen v0.1.4
[INFO] [stderr]    Compiling serde_codegen_internals v0.11.3
[INFO] [stderr]    Compiling rocket v0.1.4
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rocket_codegen-0.1.4/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[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rocket-0.1.4/src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(specialization)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rocket-0.1.4/src/lib.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(conservative_impl_trait)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rocket-0.1.4/src/lib.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![feature(drop_types_in_const)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rocket-0.1.4/src/lib.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | #![feature(associated_consts)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rocket-0.1.4/src/lib.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | #![feature(const_fn)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rocket-0.1.4/src/lib.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | #![feature(type_ascription)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 6 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `rocket`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "36bfd388f0cedbf5e4080a095043324e8ff5af2849626a3e382dcc07ff3c05de"`
[INFO] running `"docker" "rm" "-f" "36bfd388f0cedbf5e4080a095043324e8ff5af2849626a3e382dcc07ff3c05de"`
[INFO] [stdout] 36bfd388f0cedbf5e4080a095043324e8ff5af2849626a3e382dcc07ff3c05de