[INFO] fetching crate tesseract-swift 0.5.6...
[INFO] checking tesseract-swift-0.5.6 against 1.95.0 for pr-155915
[INFO] extracting crate tesseract-swift 0.5.6 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate tesseract-swift 0.5.6
[INFO] finished tweaking crates.io crate tesseract-swift 0.5.6
[INFO] tweaked toml for crates.io crate tesseract-swift 0.5.6 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tesseract-swift 0.5.6 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "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" "+1.95.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 32 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tesseract-swift-utils v0.5.6
[INFO] [stderr]   Downloaded tesseract-one v0.5.6
[INFO] [stderr]   Downloaded errorcon v0.1.0
[INFO] [stderr]   Downloaded tesseract-swift-transport v0.5.6
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bc32d9b2f8ae5672909f4861587b8414ad251a23d417f77e7818ac3e9f216e1c
[INFO] running `Command { std: "docker" "start" "-a" "bc32d9b2f8ae5672909f4861587b8414ad251a23d417f77e7818ac3e9f216e1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc32d9b2f8ae5672909f4861587b8414ad251a23d417f77e7818ac3e9f216e1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc32d9b2f8ae5672909f4861587b8414ad251a23d417f77e7818ac3e9f216e1c", kill_on_drop: false }`
[INFO] [stdout] bc32d9b2f8ae5672909f4861587b8414ad251a23d417f77e7818ac3e9f216e1c
[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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6cceb9f052ca930bd8b0cd0d96dba4698b4387a78a59e442f5701681f1c0a1f1
[INFO] running `Command { std: "docker" "start" "-a" "6cceb9f052ca930bd8b0cd0d96dba4698b4387a78a59e442f5701681f1c0a1f1", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-core v0.3.32
[INFO] [stderr]     Checking half v1.8.3
[INFO] [stderr]     Checking errorcon v0.1.0
[INFO] [stderr]     Checking tesseract-swift-utils v0.5.6
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]     Checking serde_json v1.0.149
[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/errorcon-0.1.0/src/lib.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | #![feature(return_position_impl_trait_in_trait)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]    |
[INFO] [stdout]    = help: the feature `return_position_impl_trait_in_trait` has been stable since `1.75.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `errorcon` (lib) due to 1 previous error
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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/tesseract-swift-utils-0.5.6/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(async_closure)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `async_closure` has been stable since `1.85.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tesseract-swift-utils` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "6cceb9f052ca930bd8b0cd0d96dba4698b4387a78a59e442f5701681f1c0a1f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cceb9f052ca930bd8b0cd0d96dba4698b4387a78a59e442f5701681f1c0a1f1", kill_on_drop: false }`
[INFO] [stdout] 6cceb9f052ca930bd8b0cd0d96dba4698b4387a78a59e442f5701681f1c0a1f1