[INFO] fetching crate tesseract-android-ipc 0.5.6...
[INFO] checking tesseract-android-ipc-0.5.6 against 1.95.0 for pr-155915
[INFO] extracting crate tesseract-android-ipc 0.5.6 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate tesseract-android-ipc 0.5.6
[INFO] finished tweaking crates.io crate tesseract-android-ipc 0.5.6
[INFO] tweaked toml for crates.io crate tesseract-android-ipc 0.5.6 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tesseract-android-ipc 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 46 packages to latest compatible versions
[INFO] [stderr]       Adding jni v0.20.0 (available: v0.22.4)
[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 half v1.8.3
[INFO] [stderr]   Downloaded serde_cbor v0.11.2
[INFO] [stderr]   Downloaded jni_fn v0.1.2
[INFO] [stderr]   Downloaded tesseract-android-base v0.5.6
[INFO] [stderr]   Downloaded tesseract-android-transport v0.5.6
[INFO] [stderr]   Downloaded errorcon v0.1.0
[INFO] [stderr]   Downloaded crabdroid v0.3.0
[INFO] [stderr]   Downloaded jni v0.20.0
[INFO] [stderr]   Downloaded tesseract-one v0.5.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 126acfdbcedeb63300d10188d6a77dbf4bd5bfb91e279ae05202a1bedc9830db
[INFO] running `Command { std: "docker" "start" "-a" "126acfdbcedeb63300d10188d6a77dbf4bd5bfb91e279ae05202a1bedc9830db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "126acfdbcedeb63300d10188d6a77dbf4bd5bfb91e279ae05202a1bedc9830db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "126acfdbcedeb63300d10188d6a77dbf4bd5bfb91e279ae05202a1bedc9830db", kill_on_drop: false }`
[INFO] [stdout] 126acfdbcedeb63300d10188d6a77dbf4bd5bfb91e279ae05202a1bedc9830db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] bbaa344bad31668333fb39cd40147c3f4af9721d0ede3b7235bf040ff94763ef
[INFO] running `Command { std: "docker" "start" "-a" "bbaa344bad31668333fb39cd40147c3f4af9721d0ede3b7235bf040ff94763ef", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-sink v0.3.32
[INFO] [stderr]     Checking futures-io v0.3.32
[INFO] [stderr]    Compiling jni-sys v0.3.1
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]     Checking cesu8 v1.1.0
[INFO] [stderr]     Checking half v1.8.3
[INFO] [stderr]     Checking log v0.4.29
[INFO] [stderr]    Compiling jni v0.20.0
[INFO] [stderr]     Checking combine v4.6.7
[INFO] [stderr]     Checking errorcon v0.1.0
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]     Checking futures-channel v0.3.32
[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] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `errorcon` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "bbaa344bad31668333fb39cd40147c3f4af9721d0ede3b7235bf040ff94763ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbaa344bad31668333fb39cd40147c3f4af9721d0ede3b7235bf040ff94763ef", kill_on_drop: false }`
[INFO] [stdout] bbaa344bad31668333fb39cd40147c3f4af9721d0ede3b7235bf040ff94763ef
