[INFO] fetching crate redis_tang 0.2.0...
[INFO] testing redis_tang-0.2.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate redis_tang 0.2.0 into /workspace/builds/worker-101/source
[INFO] validating manifest of crates.io crate redis_tang 0.2.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate redis_tang 0.2.0
[INFO] finished tweaking crates.io crate redis_tang 0.2.0
[INFO] tweaked toml for crates.io crate redis_tang 0.2.0 written to /workspace/builds/worker-101/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a49d9b4f9d9dcda2244cbf0817d1127dd19ba37c4c5a2f69a72fe74ad221ae89
[INFO] running `Command { std: "docker" "start" "-a" "a49d9b4f9d9dcda2244cbf0817d1127dd19ba37c4c5a2f69a72fe74ad221ae89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a49d9b4f9d9dcda2244cbf0817d1127dd19ba37c4c5a2f69a72fe74ad221ae89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a49d9b4f9d9dcda2244cbf0817d1127dd19ba37c4c5a2f69a72fe74ad221ae89", kill_on_drop: false }`
[INFO] [stdout] a49d9b4f9d9dcda2244cbf0817d1127dd19ba37c4c5a2f69a72fe74ad221ae89
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a149d6cc04ea16501a764a33cdf2f47002b3c17f492be570bbd7f177433693c0
[INFO] running `Command { std: "docker" "start" "-a" "a149d6cc04ea16501a764a33cdf2f47002b3c17f492be570bbd7f177433693c0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling async-trait v0.1.51
[INFO] [stderr]    Compiling dtoa v0.4.8
[INFO] [stderr]    Compiling tang-rs v0.2.0
[INFO] [stderr]    Compiling tokio v1.11.0
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling unicode-normalization v0.1.19
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling mio v0.7.13
[INFO] [stderr]    Compiling url v2.2.2
[INFO] [stderr]    Compiling tokio-util v0.6.8
[INFO] [stderr]    Compiling combine v4.6.1
[INFO] [stderr]    Compiling redis v0.19.0
[INFO] [stdout] error[E0412]: cannot find type `BoxFuture` in module `futures_util::future`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/redis-0.19.0/src/types.rs:524:53
[INFO] [stdout]     |
[INFO] [stdout] 524 |   pub type RedisFuture<'a, T> = futures_util::future::BoxFuture<'a, RedisResult<T>>;
[INFO] [stdout]     |                                                       ^^^^^^^^^ help: a trait with a similar name exists: `Future`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `boxed` found for opaque type `impl futures_util::Future` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/redis-0.19.0/src/aio.rs:490:10
[INFO] [stdout]     |
[INFO] [stdout] 490 |         .boxed()
[INFO] [stdout]     |          ^^^^^ method not found in `impl futures_util::Future`
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout] note: `RedisRuntime` defines an item `boxed`, perhaps you need to implement it
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/redis-0.19.0/src/aio.rs:56:1
[INFO] [stdout]     |
[INFO] [stdout] 56  | pub(crate) trait RedisRuntime: AsyncStream + Send + Sync + Sized + 'static {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `boxed` found for opaque type `impl futures_util::Future` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/redis-0.19.0/src/aio.rs:519:10
[INFO] [stdout]     |
[INFO] [stdout] 519 |         .boxed()
[INFO] [stdout]     |          ^^^^^ method not found in `impl futures_util::Future`
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout] note: `RedisRuntime` defines an item `boxed`, perhaps you need to implement it
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/redis-0.19.0/src/aio.rs:56:1
[INFO] [stdout]     |
[INFO] [stdout] 56  | pub(crate) trait RedisRuntime: AsyncStream + Send + Sync + Sized + 'static {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `boxed` found for opaque type `impl futures_util::Future` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/redis-0.19.0/src/aio.rs:827:10
[INFO] [stdout]     |
[INFO] [stdout] 827 |         .boxed()
[INFO] [stdout]     |          ^^^^^ method not found in `impl futures_util::Future`
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout] note: `RedisRuntime` defines an item `boxed`, perhaps you need to implement it
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/redis-0.19.0/src/aio.rs:56:1
[INFO] [stdout]     |
[INFO] [stdout] 56  | pub(crate) trait RedisRuntime: AsyncStream + Send + Sync + Sized + 'static {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `boxed` found for opaque type `impl futures_util::Future` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/redis-0.19.0/src/aio.rs:850:10
[INFO] [stdout]     |
[INFO] [stdout] 850 |         .boxed()
[INFO] [stdout]     |          ^^^^^ method not found in `impl futures_util::Future`
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout] note: `RedisRuntime` defines an item `boxed`, perhaps you need to implement it
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/redis-0.19.0/src/aio.rs:56:1
[INFO] [stdout]     |
[INFO] [stdout] 56  | pub(crate) trait RedisRuntime: AsyncStream + Send + Sync + Sized + 'static {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `redis` due to 6 previous errors
[INFO] running `Command { std: "docker" "inspect" "a149d6cc04ea16501a764a33cdf2f47002b3c17f492be570bbd7f177433693c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a149d6cc04ea16501a764a33cdf2f47002b3c17f492be570bbd7f177433693c0", kill_on_drop: false }`
[INFO] [stdout] a149d6cc04ea16501a764a33cdf2f47002b3c17f492be570bbd7f177433693c0