[INFO] updating cached repository RadicalZephyr/rust-advent-2017
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/RadicalZephyr/rust-advent-2017
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/RadicalZephyr/rust-advent-2017" "work/ex/beta-1.37-6/sources/1.36.0/gh/RadicalZephyr/rust-advent-2017"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/RadicalZephyr/rust-advent-2017'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/RadicalZephyr/rust-advent-2017" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/RadicalZephyr/rust-advent-2017"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/RadicalZephyr/rust-advent-2017'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 72cb675a5523f11a78643844d9f53b3f80d20b09
[INFO] sha for GitHub repo RadicalZephyr/rust-advent-2017: 72cb675a5523f11a78643844d9f53b3f80d20b09
[INFO] validating manifest of RadicalZephyr/rust-advent-2017 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 RadicalZephyr/rust-advent-2017 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 RadicalZephyr/rust-advent-2017
[INFO] finished frobbing RadicalZephyr/rust-advent-2017
[INFO] frobbed toml for RadicalZephyr/rust-advent-2017 written to work/ex/beta-1.37-6/sources/1.36.0/gh/RadicalZephyr/rust-advent-2017/Cargo.toml
[INFO] started frobbing RadicalZephyr/rust-advent-2017
[INFO] finished frobbing RadicalZephyr/rust-advent-2017
[INFO] frobbed toml for RadicalZephyr/rust-advent-2017 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/RadicalZephyr/rust-advent-2017/Cargo.toml
[INFO] crate RadicalZephyr/rust-advent-2017 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 RadicalZephyr/rust-advent-2017 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/RadicalZephyr/rust-advent-2017:/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 8c313732fb635b790a0bb7fde30801226da98970a4393c1a06d355655b64b626
[INFO] running `"docker" "start" "-a" "8c313732fb635b790a0bb7fde30801226da98970a4393c1a06d355655b64b626"`
[INFO] [stderr]    Compiling advent-2017 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.93s
[INFO] running `"docker" "inspect" "8c313732fb635b790a0bb7fde30801226da98970a4393c1a06d355655b64b626"`
[INFO] running `"docker" "rm" "-f" "8c313732fb635b790a0bb7fde30801226da98970a4393c1a06d355655b64b626"`
[INFO] [stdout] 8c313732fb635b790a0bb7fde30801226da98970a4393c1a06d355655b64b626
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/RadicalZephyr/rust-advent-2017:/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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 5ef688c45e4bee406b4a2792dd24121de4e0a41311f834facf3f31689bd290fb
[INFO] running `"docker" "start" "-a" "5ef688c45e4bee406b4a2792dd24121de4e0a41311f834facf3f31689bd290fb"`
[INFO] [stderr]    Compiling cast v0.1.0
[INFO] [stderr]    Compiling thread-scoped v1.0.2
[INFO] [stderr]    Compiling itertools v0.5.10
[INFO] [stderr]    Compiling num_cpus v0.2.13
[INFO] [stderr]    Compiling floaty v0.1.0
[INFO] [stderr]    Compiling criterion-stats v0.1.1
[INFO] [stderr] error[E0554]: #![feature] may not be used on the beta release channel
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/criterion-stats-0.1.1/src/lib.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | #![feature(custom_attribute)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the beta release channel
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/criterion-stats-0.1.1/src/lib.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | #![feature(fn_traits)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the beta release channel
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/criterion-stats-0.1.1/src/lib.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | #![feature(plugin)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the beta release channel
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/criterion-stats-0.1.1/src/lib.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | #![feature(unboxed_closures)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the beta release channel
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/criterion-stats-0.1.1/src/lib.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | #![feature(unique)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals': use NonNull instead and consider PhantomData<T> (if you also use #[may_dangle]), Send, and/or Sync
[INFO] [stderr]  --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/criterion-stats-0.1.1/src/bivariate/mod.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::ptr::Unique;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals': use NonNull instead and consider PhantomData<T> (if you also use #[may_dangle]), Send, and/or Sync
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/criterion-stats-0.1.1/src/bivariate/mod.rs:94:35
[INFO] [stderr]    |
[INFO] [stderr] 94 |                     let mut ptr = Unique::new_unchecked(&mut distributions);
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals': use NonNull instead and consider PhantomData<T> (if you also use #[may_dangle]), Send, and/or Sync
[INFO] [stderr]  --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/criterion-stats-0.1.1/src/univariate/sample.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::ptr::Unique;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals': use NonNull instead and consider PhantomData<T> (if you also use #[may_dangle]), Send, and/or Sync
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/criterion-stats-0.1.1/src/univariate/sample.rs:242:35
[INFO] [stderr]     |
[INFO] [stderr] 242 |                     let mut ptr = Unique::new_unchecked(&mut distributions);
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals': use NonNull instead and consider PhantomData<T> (if you also use #[may_dangle]), Send, and/or Sync
[INFO] [stderr]  --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/criterion-stats-0.1.1/src/univariate/mixed.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::ptr::Unique;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals': use NonNull instead and consider PhantomData<T> (if you also use #[may_dangle]), Send, and/or Sync
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/criterion-stats-0.1.1/src/univariate/mixed.rs:47:31
[INFO] [stderr]    |
[INFO] [stderr] 47 |                 let mut ptr = Unique::new_unchecked(&mut distributions);
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals'
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/criterion-stats-0.1.1/src/bivariate/mod.rs:94:35
[INFO] [stderr]    |
[INFO] [stderr] 94 |                     let mut ptr = Unique::new_unchecked(&mut distributions);
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals'
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/criterion-stats-0.1.1/src/bivariate/mod.rs:99:72
[INFO] [stderr]    |
[INFO] [stderr] 99 |                         let distributions: &mut T::Distributions = ptr.as_mut();
[INFO] [stderr]    |                                                                        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals'
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/criterion-stats-0.1.1/src/univariate/sample.rs:242:35
[INFO] [stderr]     |
[INFO] [stderr] 242 |                     let mut ptr = Unique::new_unchecked(&mut distributions);
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals'
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/criterion-stats-0.1.1/src/univariate/sample.rs:247:72
[INFO] [stderr]     |
[INFO] [stderr] 247 |                         let distributions: &mut T::Distributions = ptr.as_mut();
[INFO] [stderr]     |                                                                        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals'
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/criterion-stats-0.1.1/src/univariate/mixed.rs:47:31
[INFO] [stderr]    |
[INFO] [stderr] 47 |                 let mut ptr = Unique::new_unchecked(&mut distributions);
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals'
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/criterion-stats-0.1.1/src/univariate/mixed.rs:51:68
[INFO] [stderr]    |
[INFO] [stderr] 51 |                     let distributions: &mut T::Distributions = ptr.as_mut();
[INFO] [stderr]    |                                                                    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 17 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 `criterion-stats`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "5ef688c45e4bee406b4a2792dd24121de4e0a41311f834facf3f31689bd290fb"`
[INFO] running `"docker" "rm" "-f" "5ef688c45e4bee406b4a2792dd24121de4e0a41311f834facf3f31689bd290fb"`
[INFO] [stdout] 5ef688c45e4bee406b4a2792dd24121de4e0a41311f834facf3f31689bd290fb