[INFO] crate event_rust 0.1.1 is already in cache
[INFO] extracting crate event_rust 0.1.1 into work/ex/beta-1.37-6/sources/1.36.0/reg/event_rust/0.1.1
[INFO] extracting crate event_rust 0.1.1 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/event_rust/0.1.1
[INFO] validating manifest of event_rust-0.1.1 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 event_rust-0.1.1 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 event_rust-0.1.1
[INFO] removed 0 missing tests
[INFO] finished frobbing event_rust-0.1.1
[INFO] frobbed toml for event_rust-0.1.1 written to work/ex/beta-1.37-6/sources/1.36.0/reg/event_rust/0.1.1/Cargo.toml
[INFO] started frobbing event_rust-0.1.1
[INFO] removed 0 missing tests
[INFO] finished frobbing event_rust-0.1.1
[INFO] frobbed toml for event_rust-0.1.1 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/event_rust/0.1.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 event_rust-0.1.1 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-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/event_rust/0.1.1:/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] 717b5c4742ee2b9468d7d180d6c777ca8994b416ac74f5242452acd73622d44a
[INFO] running `"docker" "start" "-a" "717b5c4742ee2b9468d7d180d6c777ca8994b416ac74f5242452acd73622d44a"`
[INFO] [stderr]    Compiling event_rust v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] error[E0557]: feature has been removed
[INFO] [stderr]  --> src/lib.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | #![feature(negate_unsigned)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: lint `raw_pointer_derive` has been removed: `using derive with raw pointers is ok`
[INFO] [stderr]  --> src/event_entry.rs:1:10
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![allow(raw_pointer_derive)]
[INFO] [stderr]   |          ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(renamed_and_removed_lints)] on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(collections)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(const_fn)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![feature(box_raw)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[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(negate_unsigned)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | #![feature(box_syntax)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[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(rt)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Hasher`
[INFO] [stderr]  --> src/event_entry.rs:7:23
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::hash::{Hash, Hasher};
[INFO] [stderr]   |                       ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `from_vec` found for type `std::collections::BinaryHeap<_>` in the current scope
[INFO] [stderr]   --> src/timer.rs:46:34
[INFO] [stderr]    |
[INFO] [stderr] 46 |         self.timer_queue = BinaryHeap::from_vec(data);
[INFO] [stderr]    |                                        ^^^^^^^^ function or associated item not found in `std::collections::BinaryHeap<_>`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 8 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0554, E0557, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `event_rust`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "717b5c4742ee2b9468d7d180d6c777ca8994b416ac74f5242452acd73622d44a"`
[INFO] running `"docker" "rm" "-f" "717b5c4742ee2b9468d7d180d6c777ca8994b416ac74f5242452acd73622d44a"`
[INFO] [stdout] 717b5c4742ee2b9468d7d180d6c777ca8994b416ac74f5242452acd73622d44a