[INFO] updating cached repository https://github.com/singaraiona/k-rs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5b8c63eea1e95d2e860af4b1fd0825a9ed8e328a
[INFO] checking singaraiona/k-rs against beta-2019-10-27 for pr-65897
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsingaraiona%2Fk-rs" "/workspace/builds/worker-13/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/singaraiona/k-rs on toolchain beta-2019-10-27
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/singaraiona/k-rs
[INFO] finished tweaking git repo https://github.com/singaraiona/k-rs
[INFO] tweaked toml for git repo https://github.com/singaraiona/k-rs written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/singaraiona/k-rs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=allow" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-10-27" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3d25d5093b0719c819e5c81b2e9a63295617fd60730a7aa5aff12d07ac086f77
[INFO] running `"docker" "start" "-a" "3d25d5093b0719c819e5c81b2e9a63295617fd60730a7aa5aff12d07ac086f77"`
[INFO] [stderr]     Checking either v1.0.3
[INFO] [stderr]    Compiling stacker v0.1.2
[INFO] [stderr]     Checking num-rational v0.1.35
[INFO] [stderr]     Checking itertools v0.5.9
[INFO] [stderr]     Checking num v0.1.36
[INFO] [stderr]     Checking k v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(box_syntax)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(box_patterns)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![feature(concat_idents)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | #![feature(discriminant_value)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | #![feature(slice_patterns)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | #![feature(unboxed_closures)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | #![feature(alloc)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | #![feature(pattern)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]  --> src/parse/arena.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use alloc::raw_vec::RawVec;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]   --> src/parse/arena.rs:12:10
[INFO] [stderr]    |
[INFO] [stderr] 12 |     mem: RawVec<u8>,
[INFO] [stderr]    |          ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]   --> src/parse/arena.rs:33:18
[INFO] [stderr]    |
[INFO] [stderr] 33 |             mem: RawVec::new(),
[INFO] [stderr]    |                  ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]   --> src/parse/arena.rs:41:21
[INFO] [stderr]    |
[INFO] [stderr] 41 |         let mut m = RawVec::with_capacity(capacity * size_of::<T>());
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(box_syntax)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(box_patterns)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![feature(concat_idents)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | #![feature(discriminant_value)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | #![feature(slice_patterns)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | #![feature(unboxed_closures)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | #![feature(alloc)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | #![feature(pattern)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]  --> src/parse/arena.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use alloc::raw_vec::RawVec;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]   --> src/parse/arena.rs:12:10
[INFO] [stderr]    |
[INFO] [stderr] 12 |     mem: RawVec<u8>,
[INFO] [stderr]    |          ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]   --> src/parse/arena.rs:33:18
[INFO] [stderr]    |
[INFO] [stderr] 33 |             mem: RawVec::new(),
[INFO] [stderr]    |                  ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]   --> src/parse/arena.rs:41:21
[INFO] [stderr]    |
[INFO] [stderr] 41 |         let mut m = RawVec::with_capacity(capacity * size_of::<T>());
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]   --> src/parse/arena.rs:42:11
[INFO] [stderr]    |
[INFO] [stderr] 42 |         m.reserve(0, capacity);
[INFO] [stderr]    |           ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]   --> src/parse/arena.rs:59:52
[INFO] [stderr]    |
[INFO] [stderr] 59 |         unsafe { transmute::<*mut u8, &T>(self.mem.ptr().offset(self.offset(item))) }
[INFO] [stderr]    |                                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]   --> src/parse/arena.rs:64:56
[INFO] [stderr]    |
[INFO] [stderr] 64 |         unsafe { transmute::<*mut u8, &mut T>(self.mem.ptr().offset(self.offset(item))) }
[INFO] [stderr]    |                                                        ^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]   --> src/parse/arena.rs:69:52
[INFO] [stderr]    |
[INFO] [stderr] 69 |         unsafe { transmute::<*mut u8, &E>(self.mem.ptr().offset(self.offset(item))) }
[INFO] [stderr]    |                                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]   --> src/parse/arena.rs:74:56
[INFO] [stderr]    |
[INFO] [stderr] 74 |         unsafe { transmute::<*mut u8, &mut E>(self.mem.ptr().offset(self.offset(item))) }
[INFO] [stderr]    |                                                        ^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]   --> src/parse/arena.rs:80:52
[INFO] [stderr]    |
[INFO] [stderr] 80 |         unsafe { transmute::<*mut u8, &E>(self.mem.ptr().offset(self.offset(item) + off)) }
[INFO] [stderr]    |                                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]   --> src/parse/arena.rs:86:56
[INFO] [stderr]    |
[INFO] [stderr] 86 |         unsafe { transmute::<*mut u8, &mut E>(self.mem.ptr().offset(self.offset(item) + off)) }
[INFO] [stderr]    |                                                        ^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]   --> src/parse/arena.rs:91:56
[INFO] [stderr]    |
[INFO] [stderr] 91 |         unsafe { transmute::<*mut u8, *mut E>(self.mem.ptr().offset(self.offset(item))) }
[INFO] [stderr]    |                                                        ^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]   --> src/parse/arena.rs:98:18
[INFO] [stderr]    |
[INFO] [stderr] 98 |         self.mem.reserve(used, size_of::<T>());
[INFO] [stderr]    |                  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]    --> src/parse/arena.rs:148:18
[INFO] [stderr]     |
[INFO] [stderr] 148 |         self.mem.reserve(used, size);
[INFO] [stderr]     |                  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]    --> src/parse/arena.rs:184:18
[INFO] [stderr]     |
[INFO] [stderr] 184 |         self.mem.reserve(used, es);
[INFO] [stderr]     |                  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 23 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0554, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0554`.
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]   --> src/parse/arena.rs:42:11
[INFO] [stderr]    |
[INFO] [stderr] 42 |         m.reserve(0, capacity);
[INFO] [stderr]    |           ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]   --> src/parse/arena.rs:59:52
[INFO] [stderr]    |
[INFO] [stderr] 59 |         unsafe { transmute::<*mut u8, &T>(self.mem.ptr().offset(self.offset(item))) }
[INFO] [stderr]    |                                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]   --> src/parse/arena.rs:64:56
[INFO] [stderr]    |
[INFO] [stderr] 64 |         unsafe { transmute::<*mut u8, &mut T>(self.mem.ptr().offset(self.offset(item))) }
[INFO] [stderr]    |                                                        ^^^
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `k`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]   --> src/parse/arena.rs:69:52
[INFO] [stderr]    |
[INFO] [stderr] 69 |         unsafe { transmute::<*mut u8, &E>(self.mem.ptr().offset(self.offset(item))) }
[INFO] [stderr]    |                                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]   --> src/parse/arena.rs:74:56
[INFO] [stderr]    |
[INFO] [stderr] 74 |         unsafe { transmute::<*mut u8, &mut E>(self.mem.ptr().offset(self.offset(item))) }
[INFO] [stderr]    |                                                        ^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]   --> src/parse/arena.rs:80:52
[INFO] [stderr]    |
[INFO] [stderr] 80 |         unsafe { transmute::<*mut u8, &E>(self.mem.ptr().offset(self.offset(item) + off)) }
[INFO] [stderr]    |                                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]   --> src/parse/arena.rs:86:56
[INFO] [stderr]    |
[INFO] [stderr] 86 |         unsafe { transmute::<*mut u8, &mut E>(self.mem.ptr().offset(self.offset(item) + off)) }
[INFO] [stderr]    |                                                        ^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]   --> src/parse/arena.rs:91:56
[INFO] [stderr]    |
[INFO] [stderr] 91 |         unsafe { transmute::<*mut u8, *mut E>(self.mem.ptr().offset(self.offset(item))) }
[INFO] [stderr]    |                                                        ^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]   --> src/parse/arena.rs:98:18
[INFO] [stderr]    |
[INFO] [stderr] 98 |         self.mem.reserve(used, size_of::<T>());
[INFO] [stderr]    |                  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]    --> src/parse/arena.rs:148:18
[INFO] [stderr]     |
[INFO] [stderr] 148 |         self.mem.reserve(used, size);
[INFO] [stderr]     |                  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]    --> src/parse/arena.rs:184:18
[INFO] [stderr]     |
[INFO] [stderr] 184 |         self.mem.reserve(used, es);
[INFO] [stderr]     |                  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 23 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0554, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `k`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "3d25d5093b0719c819e5c81b2e9a63295617fd60730a7aa5aff12d07ac086f77"`
[INFO] running `"docker" "rm" "-f" "3d25d5093b0719c819e5c81b2e9a63295617fd60730a7aa5aff12d07ac086f77"`
[INFO] [stdout] 3d25d5093b0719c819e5c81b2e9a63295617fd60730a7aa5aff12d07ac086f77