[INFO] fetching crate enso-lazy-reader 0.2.0...
[INFO] testing enso-lazy-reader-0.2.0 against 1.76.0 for beta-1.77-1
[INFO] extracting crate enso-lazy-reader 0.2.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate enso-lazy-reader 0.2.0 on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate enso-lazy-reader 0.2.0
[INFO] finished tweaking crates.io crate enso-lazy-reader 0.2.0
[INFO] tweaked toml for crates.io crate enso-lazy-reader 0.2.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded js-sys v0.3.35
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.58
[INFO] [stderr]   Downloaded weak-table v0.3.2
[INFO] [stderr]   Downloaded boolinator v2.4.0
[INFO] [stderr]   Downloaded enclose v1.1.8
[INFO] [stderr]   Downloaded shrinkwraprs v0.3.0
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.58
[INFO] [stderr]   Downloaded wasm-bindgen-webidl v0.2.58
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.58
[INFO] [stderr]   Downloaded enso-macro-utils v0.2.0
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.58
[INFO] [stderr]   Downloaded simba v0.4.0
[INFO] [stderr]   Downloaded object v0.24.0
[INFO] [stderr]   Downloaded nalgebra v0.26.2
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.58
[INFO] [stderr]   Downloaded web-sys v0.3.35
[INFO] [stderr]   Downloaded ifmt v0.3.3
[INFO] [stderr]   Downloaded enso-shapely v0.2.0
[INFO] [stderr]   Downloaded enso-shapely-macros v0.2.1
[INFO] [stderr]   Downloaded ifmt-impl v0.3.3
[INFO] [stderr]   Downloaded enso-prelude v0.2.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 22f9a72d2299d66c6a0c2ae7d65aabd76143e3b906e60597a18dd939385139f6
[INFO] running `Command { std: "docker" "start" "-a" "22f9a72d2299d66c6a0c2ae7d65aabd76143e3b906e60597a18dd939385139f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "22f9a72d2299d66c6a0c2ae7d65aabd76143e3b906e60597a18dd939385139f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22f9a72d2299d66c6a0c2ae7d65aabd76143e3b906e60597a18dd939385139f6", kill_on_drop: false }`
[INFO] [stdout] 22f9a72d2299d66c6a0c2ae7d65aabd76143e3b906e60597a18dd939385139f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 407de56e570f27434b7c934316e2997d7f15236e698ec75ac5294727dffbf9f2
[INFO] running `Command { std: "docker" "start" "-a" "407de56e570f27434b7c934316e2997d7f15236e698ec75ac5294727dffbf9f2", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.58
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling bumpalo v3.14.0
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]    Compiling anyhow v1.0.79
[INFO] [stderr]    Compiling unicode-segmentation v1.11.0
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling miniz_oxide v0.7.2
[INFO] [stderr]    Compiling aho-corasick v1.1.2
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling weedle v0.10.0
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling wasm-bindgen v0.2.58
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]    Compiling crc32fast v1.4.0
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling regex-automata v0.4.5
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling matrixmultiply v0.3.8
[INFO] [stderr]    Compiling sourcefile v0.1.4
[INFO] [stderr]    Compiling rustversion v1.0.14
[INFO] [stderr]    Compiling num-complex v0.3.1
[INFO] [stderr]    Compiling approx v0.4.0
[INFO] [stderr]    Compiling object v0.32.2
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.58
[INFO] [stderr]    Compiling regex v1.10.3
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.58
[INFO] [stderr]    Compiling wasm-bindgen-webidl v0.2.58
[INFO] [stderr]    Compiling serde v1.0.196
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling boolinator v2.4.0
[INFO] [stderr]    Compiling simba v0.4.0
[INFO] [stderr]    Compiling flate2 v1.0.28
[INFO] [stderr]    Compiling serde_derive v1.0.196
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]    Compiling num-iter v0.1.44
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.58
[INFO] [stderr]    Compiling enso-macro-utils v0.2.0
[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-6f17d22bba15001f/enso-macro-utils-0.2.0/src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(trait_alias)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `enso-macro-utils` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "407de56e570f27434b7c934316e2997d7f15236e698ec75ac5294727dffbf9f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "407de56e570f27434b7c934316e2997d7f15236e698ec75ac5294727dffbf9f2", kill_on_drop: false }`
[INFO] [stdout] 407de56e570f27434b7c934316e2997d7f15236e698ec75ac5294727dffbf9f2
