[INFO] fetching crate rats 0.0.1...
[INFO] checking rats-0.0.1 against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] extracting crate rats 0.0.1 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate rats 0.0.1 on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate rats 0.0.1
[INFO] finished tweaking crates.io crate rats 0.0.1
[INFO] tweaked toml for crates.io crate rats 0.0.1 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=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" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2333217f401d1e72badb3d9309b6ba7880f256af6ec8dc7bfd0680ee04d6882a
[INFO] running `"docker" "start" "-a" "2333217f401d1e72badb3d9309b6ba7880f256af6ec8dc7bfd0680ee04d6882a"`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking futures-core-preview v0.2.3
[INFO] [stderr]     Checking futures-channel-preview v0.2.2
[INFO] [stderr]     Checking futures-sink-preview v0.2.2
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking futures-io-preview v0.2.2
[INFO] [stderr]     Checking futures-util-preview v0.2.2
[INFO] [stderr]     Checking futures-executor-preview v0.2.2
[INFO] [stderr]     Checking futures-stable-preview v0.2.3
[INFO] [stderr]     Checking futures-async-runtime-preview v0.2.3
[INFO] [stderr]     Checking futures-preview v0.2.2
[INFO] [stderr]     Checking rats v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `futures::future::AndThen`
[INFO] [stderr]  --> src/instances/future.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use futures::future::AndThen;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `applicative::Applicative`
[INFO] [stderr]  --> src/instances/result.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use applicative::Applicative;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/kind.rs:16:16
[INFO] [stderr]    |
[INFO] [stderr] 16 |     Future(Box<Future<Item = A, Error = B> + 'f_>),
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = A, Error = B> + 'f_`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/kinds.rs:69:68
[INFO] [stderr]    |
[INFO] [stderr] 69 | impl<'f_, A: 'f_, B: 'f_>  IntoKind<'f_, FutureKind, A, B> for Box<Future<Item=A, Error=B>>
[INFO] [stderr]    |                                                                    ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=A, Error=B>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/kinds.rs:159:20
[INFO] [stderr]     |
[INFO] [stderr] 159 |     type Out = Box<Future<Item = A, Error = B> + 'f_>;
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = A, Error = B> + 'f_`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/kinds.rs:160:27
[INFO] [stderr]     |
[INFO] [stderr] 160 |     fn reify(self) -> Box<Future<Item = A, Error = B> + 'f_> {
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = A, Error = B> + 'f_`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `futures::future::AndThen`
[INFO] [stderr]  --> src/instances/future.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use futures::future::AndThen;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `futures::future`
[INFO] [stderr]   --> src/instances/option.rs:77:13
[INFO] [stderr]    |
[INFO] [stderr] 77 |         use futures::future;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `futures::future::FutureResult`
[INFO] [stderr]   --> src/instances/option.rs:79:13
[INFO] [stderr]    |
[INFO] [stderr] 79 |         use futures::future::FutureResult;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `applicative::Applicative`
[INFO] [stderr]  --> src/instances/result.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use applicative::Applicative;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/kind.rs:16:16
[INFO] [stderr]    |
[INFO] [stderr] 16 |     Future(Box<Future<Item = A, Error = B> + 'f_>),
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = A, Error = B> + 'f_`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/kinds.rs:69:68
[INFO] [stderr]    |
[INFO] [stderr] 69 | impl<'f_, A: 'f_, B: 'f_>  IntoKind<'f_, FutureKind, A, B> for Box<Future<Item=A, Error=B>>
[INFO] [stderr]    |                                                                    ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=A, Error=B>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/kinds.rs:159:20
[INFO] [stderr]     |
[INFO] [stderr] 159 |     type Out = Box<Future<Item = A, Error = B> + 'f_>;
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = A, Error = B> + 'f_`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/kinds.rs:160:27
[INFO] [stderr]     |
[INFO] [stderr] 160 |     fn reify(self) -> Box<Future<Item = A, Error = B> + 'f_> {
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = A, Error = B> + 'f_`
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `tool_attributes` has been stable since 1.30.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/lib.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | #![feature(tool_attributes)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `tool_attributes` has been stable since 1.30.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/lib.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | #![feature(tool_attributes)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.56s
[INFO] running `"docker" "inspect" "2333217f401d1e72badb3d9309b6ba7880f256af6ec8dc7bfd0680ee04d6882a"`
[INFO] running `"docker" "rm" "-f" "2333217f401d1e72badb3d9309b6ba7880f256af6ec8dc7bfd0680ee04d6882a"`
[INFO] [stdout] 2333217f401d1e72badb3d9309b6ba7880f256af6ec8dc7bfd0680ee04d6882a