[INFO] crate geobacter-core 1.0.0 is already in cache
[INFO] testing geobacter-core-1.0.0 against 1.44.0 for beta-1.45-1
[INFO] extracting crate geobacter-core 1.0.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate geobacter-core 1.0.0 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate geobacter-core 1.0.0
[INFO] finished tweaking crates.io crate geobacter-core 1.0.0
[INFO] tweaked toml for crates.io crate geobacter-core 1.0.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c6079470d6ce5bb7f39a1f6d16fbf509bc0e1df9e5fd20352953cd88f7c80f0c
[INFO] running `"docker" "start" "-a" "c6079470d6ce5bb7f39a1f6d16fbf509bc0e1df9e5fd20352953cd88f7c80f0c"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling geobacter-shared-defs v1.0.0
[INFO] [stderr]    Compiling geobacter-core v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | #![feature(intrinsics)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | #![feature(unboxed_closures)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | #![feature(fn_traits)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | #![feature(const_fn, const_transmute)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]   --> src/lib.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | #![feature(slice_from_raw_parts)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]   --> src/lib.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | #![feature(slice_index_methods)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]   --> src/lib.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | #![feature(coerce_unsized)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]   --> src/lib.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | #![feature(unsize)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]   --> src/lib.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | #![feature(specialization)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]   --> src/lib.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | #![feature(ptr_internals)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0093]: unrecognized intrinsic function: `__geobacter_kill`
[INFO] [stderr]  --> src/intrinsics.rs:4:3
[INFO] [stderr]   |
[INFO] [stderr] 4 |   pub fn __geobacter_kill() -> !;
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unrecognized intrinsic
[INFO] [stderr] 
[INFO] [stderr] error[E0093]: unrecognized intrinsic function: `kernel_instance`
[INFO] [stderr]    --> src/kernel.rs:111:5
[INFO] [stderr]     |
[INFO] [stderr] 111 | /     pub fn kernel_instance<'upvar, F, Args, Ret>(f: &'upvar F)
[INFO] [stderr] 112 | |       -> &'static [(&'static str, &'static [u8])]
[INFO] [stderr] 113 | |       where F: OptionalFn<Args, Output=Ret>;
[INFO] [stderr]     | |____________________________________________^ unrecognized intrinsic
[INFO] [stderr] 
[INFO] [stderr] error[E0093]: unrecognized intrinsic function: `kernel_context_data_id`
[INFO] [stderr]    --> src/kernel.rs:114:5
[INFO] [stderr]     |
[INFO] [stderr] 114 | /     pub fn kernel_context_data_id<'upvar, F, Args, Ret>(f: &'upvar F)
[INFO] [stderr] 115 | |       -> &'static usize
[INFO] [stderr] 116 | |       where F: Fn<Args, Output=Ret>;
[INFO] [stderr]     | |____________________________________^ unrecognized intrinsic
[INFO] [stderr] 
[INFO] [stderr] error[E0093]: unrecognized intrinsic function: `__geobacter_current_platform`
[INFO] [stderr]   --> src/platform.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn __geobacter_current_platform() -> &'static [u8; size_of::<Platform>()];
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unrecognized intrinsic
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 14 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0093, E0554.
[INFO] [stderr] For more information about an error, try `rustc --explain E0093`.
[INFO] [stderr] error: could not compile `geobacter-core`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "c6079470d6ce5bb7f39a1f6d16fbf509bc0e1df9e5fd20352953cd88f7c80f0c"`
[INFO] running `"docker" "rm" "-f" "c6079470d6ce5bb7f39a1f6d16fbf509bc0e1df9e5fd20352953cd88f7c80f0c"`
[INFO] [stdout] c6079470d6ce5bb7f39a1f6d16fbf509bc0e1df9e5fd20352953cd88f7c80f0c