[INFO] cloning repository https://github.com/frontsideair/mst
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/frontsideair/mst" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrontsideair%2Fmst", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrontsideair%2Fmst'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 733dbaf513c19019b8723224c49c379ae0eac176
[INFO] testing frontsideair/mst against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrontsideair%2Fmst" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/frontsideair/mst on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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 /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/frontsideair/mst already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/japaric/criterion.rs.git`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded floaty v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2ded19fbdac414bf354c9ead8056df6401a368919c3004c47df8e153d4a9b8ea
[INFO] running `Command { std: "docker" "start" "-a" "2ded19fbdac414bf354c9ead8056df6401a368919c3004c47df8e153d4a9b8ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ded19fbdac414bf354c9ead8056df6401a368919c3004c47df8e153d4a9b8ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ded19fbdac414bf354c9ead8056df6401a368919c3004c47df8e153d4a9b8ea", kill_on_drop: false }`
[INFO] [stdout] 2ded19fbdac414bf354c9ead8056df6401a368919c3004c47df8e153d4a9b8ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 46954a7969035bab3e721099c67b32d9a6e044de88080c1caf48cb06424a87de
[INFO] running `Command { std: "docker" "start" "-a" "46954a7969035bab3e721099c67b32d9a6e044de88080c1caf48cb06424a87de", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling mintree1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.74s
[INFO] running `Command { std: "docker" "inspect" "46954a7969035bab3e721099c67b32d9a6e044de88080c1caf48cb06424a87de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46954a7969035bab3e721099c67b32d9a6e044de88080c1caf48cb06424a87de", kill_on_drop: false }`
[INFO] [stdout] 46954a7969035bab3e721099c67b32d9a6e044de88080c1caf48cb06424a87de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c3f8c64d51266e207ff556ee462f5ae462f35539d576cfa949b742d22e61a01
[INFO] running `Command { std: "docker" "start" "-a" "0c3f8c64d51266e207ff556ee462f5ae462f35539d576cfa949b742d22e61a01", kill_on_drop: false }`
[INFO] [stderr]    Compiling cast v0.1.0
[INFO] [stderr]    Compiling either v1.4.0
[INFO] [stderr]    Compiling byteorder v1.2.1
[INFO] [stderr]    Compiling thread-scoped v1.0.2
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling log v0.3.8
[INFO] [stderr]    Compiling itertools v0.4.19
[INFO] [stderr]    Compiling rand v0.3.18
[INFO] [stderr]    Compiling num_cpus v0.2.13
[INFO] [stderr]    Compiling itertools v0.5.10
[INFO] [stderr]    Compiling floaty v0.1.0
[INFO] [stderr]    Compiling criterion-stats v0.1.1 (https://github.com/japaric/criterion.rs.git#eaa682f7)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/criterion.rs-33720cacd219973f/eaa682f/stats/src/lib.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | #![feature(custom_attribute)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: removed in favor of `#![register_tool]` and `#![register_attr]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/criterion.rs-33720cacd219973f/eaa682f/stats/src/lib.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | #![feature(custom_attribute)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/criterion.rs-33720cacd219973f/eaa682f/stats/src/lib.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | #![feature(fn_traits)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/criterion.rs-33720cacd219973f/eaa682f/stats/src/lib.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | #![feature(plugin)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/criterion.rs-33720cacd219973f/eaa682f/stats/src/lib.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | #![feature(unboxed_closures)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/criterion.rs-33720cacd219973f/eaa682f/stats/src/lib.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | #![feature(unique)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling criterion-plot v0.1.1 (https://github.com/japaric/criterion.rs.git#eaa682f7)
[INFO] [stdout] 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] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/criterion.rs-33720cacd219973f/eaa682f/stats/src/bivariate/mod.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::ptr::Unique;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 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] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/criterion.rs-33720cacd219973f/eaa682f/stats/src/bivariate/mod.rs:94:35
[INFO] [stdout]    |
[INFO] [stdout] 94 |                     let mut ptr = Unique::new_unchecked(&mut distributions);
[INFO] [stdout]    |                                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 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] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/criterion.rs-33720cacd219973f/eaa682f/stats/src/univariate/sample.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ptr::Unique;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 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] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/criterion.rs-33720cacd219973f/eaa682f/stats/src/univariate/sample.rs:242:35
[INFO] [stdout]     |
[INFO] [stdout] 242 |                     let mut ptr = Unique::new_unchecked(&mut distributions);
[INFO] [stdout]     |                                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 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] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/criterion.rs-33720cacd219973f/eaa682f/stats/src/univariate/mixed.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::ptr::Unique;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 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] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/criterion.rs-33720cacd219973f/eaa682f/stats/src/univariate/mixed.rs:47:31
[INFO] [stdout]    |
[INFO] [stdout] 47 |                 let mut ptr = Unique::new_unchecked(&mut distributions);
[INFO] [stdout]    |                               ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'ptr_internals'
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/criterion.rs-33720cacd219973f/eaa682f/stats/src/bivariate/mod.rs:94:35
[INFO] [stdout]    |
[INFO] [stdout] 94 |                     let mut ptr = Unique::new_unchecked(&mut distributions);
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'ptr_internals'
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/criterion.rs-33720cacd219973f/eaa682f/stats/src/bivariate/mod.rs:99:72
[INFO] [stdout]    |
[INFO] [stdout] 99 |                         let distributions: &mut T::Distributions = ptr.as_mut();
[INFO] [stdout]    |                                                                        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'ptr_internals'
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/criterion.rs-33720cacd219973f/eaa682f/stats/src/univariate/sample.rs:242:35
[INFO] [stdout]     |
[INFO] [stdout] 242 |                     let mut ptr = Unique::new_unchecked(&mut distributions);
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'ptr_internals'
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/criterion.rs-33720cacd219973f/eaa682f/stats/src/univariate/sample.rs:247:72
[INFO] [stdout]     |
[INFO] [stdout] 247 |                         let distributions: &mut T::Distributions = ptr.as_mut();
[INFO] [stdout]     |                                                                        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'ptr_internals'
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/criterion.rs-33720cacd219973f/eaa682f/stats/src/univariate/mixed.rs:47:31
[INFO] [stdout]    |
[INFO] [stdout] 47 |                 let mut ptr = Unique::new_unchecked(&mut distributions);
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'ptr_internals'
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/criterion.rs-33720cacd219973f/eaa682f/stats/src/univariate/mixed.rs:51:68
[INFO] [stdout]    |
[INFO] [stdout] 51 |                     let distributions: &mut T::Distributions = ptr.as_mut();
[INFO] [stdout]    |                                                                    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 18 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0557, E0658.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `criterion-stats` due to 19 previous errors
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "0c3f8c64d51266e207ff556ee462f5ae462f35539d576cfa949b742d22e61a01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c3f8c64d51266e207ff556ee462f5ae462f35539d576cfa949b742d22e61a01", kill_on_drop: false }`
[INFO] [stdout] 0c3f8c64d51266e207ff556ee462f5ae462f35539d576cfa949b742d22e61a01