[INFO] fetching crate photonio-tokio 0.0.5...
[INFO] testing photonio-tokio-0.0.5 against 1.90.0 for beta-1.91-3
[INFO] extracting crate photonio-tokio 0.0.5 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate photonio-tokio 0.0.5
[INFO] finished tweaking crates.io crate photonio-tokio 0.0.5
[INFO] tweaked toml for crates.io crate photonio-tokio 0.0.5 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate photonio-tokio 0.0.5 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 54 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded photonio-base v0.0.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b1546262e8a1d9423c5e16e3864d7b4609e7b8919321d7917e7bd9f5b7d42a88
[INFO] running `Command { std: "docker" "start" "-a" "b1546262e8a1d9423c5e16e3864d7b4609e7b8919321d7917e7bd9f5b7d42a88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b1546262e8a1d9423c5e16e3864d7b4609e7b8919321d7917e7bd9f5b7d42a88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1546262e8a1d9423c5e16e3864d7b4609e7b8919321d7917e7bd9f5b7d42a88", kill_on_drop: false }`
[INFO] [stdout] b1546262e8a1d9423c5e16e3864d7b4609e7b8919321d7917e7bd9f5b7d42a88
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 762875e9a600cf3589217f44a7f868d917f8c1c61662f221fc6ed4f1b11f521a
[INFO] running `Command { std: "docker" "start" "-a" "762875e9a600cf3589217f44a7f868d917f8c1c61662f221fc6ed4f1b11f521a", kill_on_drop: false }`
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling lock_api v0.4.13
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling photonio-base v0.0.5
[INFO] [stderr]    Compiling mio v1.0.4
[INFO] [stderr]    Compiling socket2 v0.6.0
[INFO] [stderr]    Compiling signal-hook-registry v1.4.6
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/photonio-base-0.0.5/src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(pin_macro, io_error_more, type_alias_impl_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/photonio-base-0.0.5/src/io/read.rs:36:26
[INFO] [stdout]    |
[INFO] [stdout] 36 |     type ReadExact<'a> = impl Future<Output = Result<()>> + 'a where Self: 'a;
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/photonio-base-0.0.5/src/io/read.rs:81:28
[INFO] [stdout]    |
[INFO] [stdout] 81 |     type ReadExactAt<'a> = impl Future<Output = Result<()>> + 'a where Self: 'a;
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/photonio-base-0.0.5/src/io/write.rs:36:25
[INFO] [stdout]    |
[INFO] [stdout] 36 |     type WriteAll<'a> = impl Future<Output = Result<()>> + 'a
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/photonio-base-0.0.5/src/io/write.rs:83:27
[INFO] [stdout]    |
[INFO] [stdout] 83 |     type WriteAllAt<'a> = impl Future<Output = Result<()>> + 'a
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr] error: could not compile `photonio-base` (lib) due to 5 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "762875e9a600cf3589217f44a7f868d917f8c1c61662f221fc6ed4f1b11f521a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "762875e9a600cf3589217f44a7f868d917f8c1c61662f221fc6ed4f1b11f521a", kill_on_drop: false }`
[INFO] [stdout] 762875e9a600cf3589217f44a7f868d917f8c1c61662f221fc6ed4f1b11f521a