[INFO] fetching crate airlang_bin 0.0.9...
[INFO] testing airlang_bin-0.0.9 against 1.75.0 for beta-1.76-1
[INFO] extracting crate airlang_bin 0.0.9 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate airlang_bin 0.0.9 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate airlang_bin 0.0.9
[INFO] finished tweaking crates.io crate airlang_bin 0.0.9
[INFO] tweaked toml for crates.io crate airlang_bin 0.0.9 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate airlang_bin 0.0.9 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded smartstring v1.0.1
[INFO] [stderr]   Downloaded static_assertions v1.1.0
[INFO] [stderr]   Downloaded thiserror-impl v1.0.50
[INFO] [stderr]   Downloaded rustc-hash v1.1.0
[INFO] [stderr]   Downloaded az v1.2.1
[INFO] [stderr]   Downloaded thiserror v1.0.50
[INFO] [stderr]   Downloaded airlang v0.0.9
[INFO] [stderr]   Downloaded rug v1.22.0
[INFO] [stderr]   Downloaded libc v0.2.150
[INFO] [stderr]   Downloaded syn v2.0.39
[INFO] [stderr]   Downloaded proc-macro2 v1.0.70
[INFO] [stderr]   Downloaded gmp-mpfr-sys v1.6.1
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c036df3f96ed0b8c537a49242168f05ddd4fb05a7c4c7dc068f4806863caee88
[INFO] running `Command { std: "docker" "start" "-a" "c036df3f96ed0b8c537a49242168f05ddd4fb05a7c4c7dc068f4806863caee88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c036df3f96ed0b8c537a49242168f05ddd4fb05a7c4c7dc068f4806863caee88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c036df3f96ed0b8c537a49242168f05ddd4fb05a7c4c7dc068f4806863caee88", kill_on_drop: false }`
[INFO] [stdout] c036df3f96ed0b8c537a49242168f05ddd4fb05a7c4c7dc068f4806863caee88
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b1ddf5320cbbb0086bb798597d0688459d6864449fcb31b1a7185837efbbbdc1
[INFO] running `Command { std: "docker" "start" "-a" "b1ddf5320cbbb0086bb798597d0688459d6864449fcb31b1a7185837efbbbdc1", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling proc-macro2 v1.0.70
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.6.1
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling az v1.2.1
[INFO] [stderr]    Compiling thiserror v1.0.50
[INFO] [stderr]    Compiling rug v1.22.0
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling memchr v2.6.4
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling smartstring v1.0.1
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.39
[INFO] [stderr]    Compiling getrandom v0.2.11
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.50
[INFO] [stderr]    Compiling airlang v0.0.9
[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/airlang-0.0.9/src/lib.rs:27:1
[INFO] [stdout]    |
[INFO] [stdout] 27 | / #![feature(
[INFO] [stdout] 28 | |     iter_array_chunks,
[INFO] [stdout] 29 | |     iter_advance_by,
[INFO] [stdout] 30 | |     try_trait_v2,
[INFO] [stdout] ...  |
[INFO] [stdout] 37 | |     variant_count
[INFO] [stdout] 38 | | )]
[INFO] [stdout]    | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[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/airlang-0.0.9/src/lib.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     iter_array_chunks,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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/airlang-0.0.9/src/lib.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     iter_advance_by,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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/airlang-0.0.9/src/lib.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     try_trait_v2,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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/airlang-0.0.9/src/lib.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     iterator_try_collect,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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/airlang-0.0.9/src/lib.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     unsize,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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/airlang-0.0.9/src/lib.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     coerce_unsized,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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/airlang-0.0.9/src/lib.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     array_methods,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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/airlang-0.0.9/src/lib.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     assert_matches,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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/airlang-0.0.9/src/lib.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     variant_count
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 10 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `airlang` (lib) due to 11 previous errors
[INFO] running `Command { std: "docker" "inspect" "b1ddf5320cbbb0086bb798597d0688459d6864449fcb31b1a7185837efbbbdc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1ddf5320cbbb0086bb798597d0688459d6864449fcb31b1a7185837efbbbdc1", kill_on_drop: false }`
[INFO] [stdout] b1ddf5320cbbb0086bb798597d0688459d6864449fcb31b1a7185837efbbbdc1
