[INFO] updating cached repository https://github.com/frontsideair/mst
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/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] 733dbaf513c19019b8723224c49c379ae0eac176
[INFO] checking frontsideair/mst against master#c9edc02e8320a9e5799d185910ece7d491f524e6 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrontsideair%2Fmst" "work/builds/worker-7/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/frontsideair/mst on toolchain c9edc02e8320a9e5799d185910ece7d491f524e6-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/frontsideair/mst
[INFO] finished tweaking git repo https://github.com/frontsideair/mst
[INFO] tweaked toml for git repo https://github.com/frontsideair/mst written to work/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/frontsideair/mst already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 263b1575b16d1251549914df11e45f3c3df6b553298be3496f43f5f6101006b8
[INFO] running `"docker" "start" "-a" "263b1575b16d1251549914df11e45f3c3df6b553298be3496f43f5f6101006b8"`
[INFO] [stderr]     Checking cast v0.1.0
[INFO] [stderr]     Checking mintree1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking num_cpus v0.2.13
[INFO] [stderr]     Checking itertools v0.5.10
[INFO] [stderr]     Checking floaty v0.1.0
[INFO] [stderr]     Checking criterion-stats v0.1.1 (https://github.com/japaric/criterion.rs.git#eaa682f7)
[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/rustwide/cargo-home/git/checkouts/criterion.rs-33720cacd219973f/eaa682f/stats/src/bivariate/mod.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::ptr::Unique;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = help: add `#![feature(ptr_internals)]` to the crate attributes to enable
[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/rustwide/cargo-home/git/checkouts/criterion.rs-33720cacd219973f/eaa682f/stats/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]    = help: add `#![feature(ptr_internals)]` to the crate attributes to enable
[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/rustwide/cargo-home/git/checkouts/criterion.rs-33720cacd219973f/eaa682f/stats/src/univariate/sample.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::ptr::Unique;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = help: add `#![feature(ptr_internals)]` to the crate attributes to enable
[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/rustwide/cargo-home/git/checkouts/criterion.rs-33720cacd219973f/eaa682f/stats/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]     = help: add `#![feature(ptr_internals)]` to the crate attributes to enable
[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/rustwide/cargo-home/git/checkouts/criterion.rs-33720cacd219973f/eaa682f/stats/src/univariate/mixed.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::ptr::Unique;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = help: add `#![feature(ptr_internals)]` to the crate attributes to enable
[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/rustwide/cargo-home/git/checkouts/criterion.rs-33720cacd219973f/eaa682f/stats/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]    = help: add `#![feature(ptr_internals)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr]     Checking criterion-plot v0.1.1 (https://github.com/japaric/criterion.rs.git#eaa682f7)
[INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals'
[INFO] [stderr]   --> /opt/rustwide/cargo-home/git/checkouts/criterion.rs-33720cacd219973f/eaa682f/stats/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]    = help: add `#![feature(ptr_internals)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals'
[INFO] [stderr]   --> /opt/rustwide/cargo-home/git/checkouts/criterion.rs-33720cacd219973f/eaa682f/stats/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]    = help: add `#![feature(ptr_internals)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals'
[INFO] [stderr]    --> /opt/rustwide/cargo-home/git/checkouts/criterion.rs-33720cacd219973f/eaa682f/stats/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]     = help: add `#![feature(ptr_internals)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals'
[INFO] [stderr]    --> /opt/rustwide/cargo-home/git/checkouts/criterion.rs-33720cacd219973f/eaa682f/stats/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]     = help: add `#![feature(ptr_internals)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals'
[INFO] [stderr]   --> /opt/rustwide/cargo-home/git/checkouts/criterion.rs-33720cacd219973f/eaa682f/stats/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]    = help: add `#![feature(ptr_internals)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'ptr_internals'
[INFO] [stderr]   --> /opt/rustwide/cargo-home/git/checkouts/criterion.rs-33720cacd219973f/eaa682f/stats/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]    = help: add `#![feature(ptr_internals)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 12 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0658`.
[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" "263b1575b16d1251549914df11e45f3c3df6b553298be3496f43f5f6101006b8"`
[INFO] running `"docker" "rm" "-f" "263b1575b16d1251549914df11e45f3c3df6b553298be3496f43f5f6101006b8"`
[INFO] [stdout] 263b1575b16d1251549914df11e45f3c3df6b553298be3496f43f5f6101006b8