[INFO] updating cached repository marcusklaas/lisp-interpreter
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/marcusklaas/lisp-interpreter
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/marcusklaas/lisp-interpreter" "work/ex/beta-1.37-6/sources/1.36.0/gh/marcusklaas/lisp-interpreter"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/marcusklaas/lisp-interpreter'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/marcusklaas/lisp-interpreter" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/marcusklaas/lisp-interpreter"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/marcusklaas/lisp-interpreter'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a4b1cb3e46f9763672db60cfda73758bf4963471
[INFO] sha for GitHub repo marcusklaas/lisp-interpreter: a4b1cb3e46f9763672db60cfda73758bf4963471
[INFO] validating manifest of marcusklaas/lisp-interpreter 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 marcusklaas/lisp-interpreter 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 marcusklaas/lisp-interpreter
[INFO] finished frobbing marcusklaas/lisp-interpreter
[INFO] frobbed toml for marcusklaas/lisp-interpreter written to work/ex/beta-1.37-6/sources/1.36.0/gh/marcusklaas/lisp-interpreter/Cargo.toml
[INFO] started frobbing marcusklaas/lisp-interpreter
[INFO] finished frobbing marcusklaas/lisp-interpreter
[INFO] frobbed toml for marcusklaas/lisp-interpreter written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/marcusklaas/lisp-interpreter/Cargo.toml
[INFO] crate marcusklaas/lisp-interpreter 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 marcusklaas/lisp-interpreter 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-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/marcusklaas/lisp-interpreter:/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] df3aa77245627eb038f86199c81f4355083f8b3b04dcd7771351cbd7dfddde8e
[INFO] running `"docker" "start" "-a" "df3aa77245627eb038f86199c81f4355083f8b3b04dcd7771351cbd7dfddde8e"`
[INFO] [stderr]    Compiling string-interner v0.6.2
[INFO] [stderr]    Compiling yalp v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | #![feature(plugin, splice, slice_patterns, slice_get_slice, collections_range)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'slice_index_methods'
[INFO] [stderr]   --> src/lib.rs:89:5
[INFO] [stderr]    |
[INFO] [stderr] 89 | /     fn get(self, slice: &[LispValue]) -> Option<&Self::Output> {
[INFO] [stderr] 90 | |         slice.get(self.to_usize())
[INFO] [stderr] 91 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'slice_index_methods'
[INFO] [stderr]   --> src/lib.rs:93:5
[INFO] [stderr]    |
[INFO] [stderr] 93 | /     fn get_mut(self, slice: &mut [LispValue]) -> Option<&mut Self::Output> {
[INFO] [stderr] 94 | |         slice.get_mut(self.to_usize())
[INFO] [stderr] 95 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'slice_index_methods'
[INFO] [stderr]   --> src/lib.rs:97:5
[INFO] [stderr]    |
[INFO] [stderr] 97 | /     unsafe fn get_unchecked(self, _slice: &[LispValue]) -> &Self::Output {
[INFO] [stderr] 98 | |         unimplemented!()
[INFO] [stderr] 99 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'slice_index_methods'
[INFO] [stderr]    --> src/lib.rs:101:5
[INFO] [stderr]     |
[INFO] [stderr] 101 | /     unsafe fn get_unchecked_mut(self, _slice: &mut [LispValue]) -> &mut Self::Output {
[INFO] [stderr] 102 | |         unimplemented!()
[INFO] [stderr] 103 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'slice_index_methods'
[INFO] [stderr]    --> src/lib.rs:105:5
[INFO] [stderr]     |
[INFO] [stderr] 105 | /     fn index(self, slice: &[LispValue]) -> &Self::Output {
[INFO] [stderr] 106 | |         slice.index(self.to_usize())
[INFO] [stderr] 107 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'slice_index_methods'
[INFO] [stderr]    --> src/lib.rs:109:5
[INFO] [stderr]     |
[INFO] [stderr] 109 | /     fn index_mut(self, slice: &mut [LispValue]) -> &mut Self::Output {
[INFO] [stderr] 110 | |         slice.index_mut(self.to_usize())
[INFO] [stderr] 111 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the trait bound `StackOffset: core::slice::private_slice_index::Sealed` is not satisfied
[INFO] [stderr]   --> src/lib.rs:86:6
[INFO] [stderr]    |
[INFO] [stderr] 86 | impl SliceIndex<[LispValue]> for StackOffset {
[INFO] [stderr]    |      ^^^^^^^^^^^^^^^^^^^^^^^ the trait `core::slice::private_slice_index::Sealed` is not implemented for `StackOffset`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 8 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0277, E0554, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0277`.
[INFO] [stderr] error: Could not compile `yalp`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "df3aa77245627eb038f86199c81f4355083f8b3b04dcd7771351cbd7dfddde8e"`
[INFO] running `"docker" "rm" "-f" "df3aa77245627eb038f86199c81f4355083f8b3b04dcd7771351cbd7dfddde8e"`
[INFO] [stdout] df3aa77245627eb038f86199c81f4355083f8b3b04dcd7771351cbd7dfddde8e