[INFO] fetching crate ddc_bucket 0.5.1...
[INFO] testing ddc_bucket-0.5.1 against 1.75.0 for beta-1.76-1
[INFO] extracting crate ddc_bucket 0.5.1 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate ddc_bucket 0.5.1 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 ddc_bucket 0.5.1
[INFO] finished tweaking crates.io crate ddc_bucket 0.5.1
[INFO] tweaked toml for crates.io crate ddc_bucket 0.5.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded impl-serde v0.3.2
[INFO] [stderr]   Downloaded funty v1.1.0
[INFO] [stderr]   Downloaded sp-std v3.0.0
[INFO] [stderr]   Downloaded array-init v2.1.0
[INFO] [stderr]   Downloaded parity-scale-codec v2.3.1
[INFO] [stderr]   Downloaded parity-scale-codec-derive v2.3.1
[INFO] [stderr]   Downloaded radium v0.6.2
[INFO] [stderr]   Downloaded wyz v0.2.0
[INFO] [stderr]   Downloaded blake2 v0.9.2
[INFO] [stderr]   Downloaded bitvec v0.20.4
[INFO] [stderr]   Downloaded scale-info-derive v0.4.0
[INFO] [stderr]   Downloaded ink_prelude v3.0.0-rc4
[INFO] [stderr]   Downloaded ink_storage_derive v3.0.0-rc4
[INFO] [stderr]   Downloaded sp-debug-derive v3.0.0
[INFO] [stderr]   Downloaded ink_primitives v3.0.0-rc4
[INFO] [stderr]   Downloaded ink_allocator v3.0.0-rc4
[INFO] [stderr]   Downloaded sp-arithmetic v3.0.0
[INFO] [stderr]   Downloaded ink_lang_macro v3.0.0-rc4
[INFO] [stderr]   Downloaded ink_lang v3.0.0-rc4
[INFO] [stderr]   Downloaded ink_metadata v3.0.0-rc4
[INFO] [stderr]   Downloaded scale-info v0.6.0
[INFO] [stderr]   Downloaded ink_env v3.0.0-rc4
[INFO] [stderr]   Downloaded ink_lang_codegen v3.0.0-rc4
[INFO] [stderr]   Downloaded ink_lang_ir v3.0.0-rc4
[INFO] [stderr]   Downloaded ink_storage v3.0.0-rc4
[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] e7a020a9e5e92bfa7537bd1032d5c65918cacdc9e6fc91dd4d9ce1ad3fbdc30d
[INFO] running `Command { std: "docker" "start" "-a" "e7a020a9e5e92bfa7537bd1032d5c65918cacdc9e6fc91dd4d9ce1ad3fbdc30d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7a020a9e5e92bfa7537bd1032d5c65918cacdc9e6fc91dd4d9ce1ad3fbdc30d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7a020a9e5e92bfa7537bd1032d5c65918cacdc9e6fc91dd4d9ce1ad3fbdc30d", kill_on_drop: false }`
[INFO] [stdout] e7a020a9e5e92bfa7537bd1032d5c65918cacdc9e6fc91dd4d9ce1ad3fbdc30d
[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] 88a26336d5936391e3c5b799a9fcc66cfae083c504af72204a922484c23c8d48
[INFO] running `Command { std: "docker" "start" "-a" "88a26336d5936391e3c5b799a9fcc66cfae083c504af72204a922484c23c8d48", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.75
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling hashbrown v0.14.3
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling radium v0.6.2
[INFO] [stderr]    Compiling serde v1.0.194
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling toml_datetime v0.6.5
[INFO] [stderr]    Compiling winnow v0.5.32
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling funty v1.1.0
[INFO] [stderr]    Compiling indexmap v2.1.0
[INFO] [stderr]    Compiling wyz v0.2.0
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling byte-slice-cast v1.2.2
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling bitvec v0.20.4
[INFO] [stderr]    Compiling arrayvec v0.7.4
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling opaque-debug v0.3.0
[INFO] [stderr]    Compiling aho-corasick v1.1.2
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
[INFO] [stderr]    Compiling subtle v2.5.0
[INFO] [stderr]    Compiling toml v0.5.11
[INFO] [stderr]    Compiling crypto-mac v0.8.0
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling crossbeam-utils v0.8.18
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling serde_derive v1.0.194
[INFO] [stderr]    Compiling regex-automata v0.4.3
[INFO] [stderr]    Compiling blake2 v0.9.2
[INFO] [stderr]    Compiling ink_prelude v3.0.0-rc4
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.17
[INFO] [stderr]    Compiling getrandom v0.2.11
[INFO] [stderr]    Compiling rayon-core v1.12.0
[INFO] [stderr]    Compiling ryu v1.0.16
[INFO] [stderr]    Compiling itoa v1.0.10
[INFO] [stderr]    Compiling serde_json v1.0.111
[INFO] [stderr]    Compiling block-padding v0.2.1
[INFO] [stderr]    Compiling crossbeam-deque v0.8.4
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling regex v1.10.2
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling plotters-backend v0.3.5
[INFO] [stderr]    Compiling unicode-segmentation v1.10.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling unicode-width v0.1.11
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling plotters-svg v0.3.5
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling integer-sqrt v0.1.5
[INFO] [stderr]    Compiling csv-core v0.1.11
[INFO] [stderr]    Compiling half v1.8.2
[INFO] [stderr]    Compiling sp-std v3.0.0
[INFO] [stderr]    Compiling cast v0.3.0
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]    Compiling cpufeatures v0.2.12
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling parity-scale-codec-derive v2.3.1
[INFO] [stderr]    Compiling impl-trait-for-tuples v0.2.2
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]    Compiling scale-info-derive v0.4.0
[INFO] [stderr]    Compiling sp-debug-derive v3.0.0
[INFO] [stderr]    Compiling keccak v0.1.4
[INFO] [stderr]    Compiling sha3 v0.9.1
[INFO] [stderr]    Compiling walkdir v2.4.0
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling criterion-plot v0.4.5
[INFO] [stderr]    Compiling sha2 v0.9.9
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling rayon v1.8.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling plotters v0.3.5
[INFO] [stderr]    Compiling ink_lang_ir v3.0.0-rc4
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling impl-serde v0.3.2
[INFO] [stderr]    Compiling ink_allocator v3.0.0-rc4
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling arrayref v0.3.7
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling ink_storage_derive v3.0.0-rc4
[INFO] [stderr]    Compiling array-init v2.1.0
[INFO] [stderr]    Compiling csv v1.3.0
[INFO] [stderr]    Compiling serde_cbor v0.11.2
[INFO] [stderr]    Compiling parity-scale-codec v2.3.1
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling scale-info v0.6.0
[INFO] [stderr]    Compiling sp-arithmetic v3.0.0
[INFO] [stderr]    Compiling ink_lang_codegen v3.0.0-rc4
[INFO] [stderr]    Compiling criterion v0.3.6
[INFO] [stderr]    Compiling ink_primitives v3.0.0-rc4
[INFO] [stderr]    Compiling ink_metadata v3.0.0-rc4
[INFO] [stderr]    Compiling ink_env v3.0.0-rc4
[INFO] [stderr]    Compiling ink_lang_macro v3.0.0-rc4
[INFO] [stderr]    Compiling ink_storage v3.0.0-rc4
[INFO] [stderr]    Compiling ink_lang v3.0.0-rc4
[INFO] [stderr]    Compiling ddc_bucket v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(proc_macro_hygiene)] // for tests in a separate file
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 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 `ddc_bucket` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "88a26336d5936391e3c5b799a9fcc66cfae083c504af72204a922484c23c8d48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88a26336d5936391e3c5b799a9fcc66cfae083c504af72204a922484c23c8d48", kill_on_drop: false }`
[INFO] [stdout] 88a26336d5936391e3c5b799a9fcc66cfae083c504af72204a922484c23c8d48
[INFO] testing ddc_bucket-0.5.1 against beta-2023-12-22 for beta-1.76-1
[INFO] extracting crate ddc_bucket 0.5.1 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate ddc_bucket 0.5.1 on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ddc_bucket 0.5.1
[INFO] finished tweaking crates.io crate ddc_bucket 0.5.1
[INFO] tweaked toml for crates.io crate ddc_bucket 0.5.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "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" "+beta-2023-12-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "+beta-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0795e54f9bf1e03f6ddd7c4a818178c1043d4907f3719d74254b7ee965f9e604
[INFO] running `Command { std: "docker" "start" "-a" "0795e54f9bf1e03f6ddd7c4a818178c1043d4907f3719d74254b7ee965f9e604", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0795e54f9bf1e03f6ddd7c4a818178c1043d4907f3719d74254b7ee965f9e604", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0795e54f9bf1e03f6ddd7c4a818178c1043d4907f3719d74254b7ee965f9e604", kill_on_drop: false }`
[INFO] [stdout] 0795e54f9bf1e03f6ddd7c4a818178c1043d4907f3719d74254b7ee965f9e604
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "+beta-2023-12-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18b1d9b11c88361c60d2f9df21a0eded0fa210c7f3f90af385969486180b7ea7
[INFO] running `Command { std: "docker" "start" "-a" "18b1d9b11c88361c60d2f9df21a0eded0fa210c7f3f90af385969486180b7ea7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.75
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling hashbrown v0.14.3
[INFO] [stderr]    Compiling radium v0.6.2
[INFO] [stderr]    Compiling winnow v0.5.32
[INFO] [stderr]    Compiling serde v1.0.194
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling toml_datetime v0.6.5
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling indexmap v2.1.0
[INFO] [stderr]    Compiling wyz v0.2.0
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling funty v1.1.0
[INFO] [stderr]    Compiling byte-slice-cast v1.2.2
[INFO] [stderr]    Compiling arrayvec v0.7.4
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]    Compiling opaque-debug v0.3.0
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling bitvec v0.20.4
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling aho-corasick v1.1.2
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]    Compiling subtle v2.5.0
[INFO] [stderr]    Compiling crypto-mac v0.8.0
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling toml v0.5.11
[INFO] [stderr]    Compiling serde_derive v1.0.194
[INFO] [stderr]    Compiling regex-automata v0.4.3
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling crossbeam-utils v0.8.18
[INFO] [stderr]    Compiling blake2 v0.9.2
[INFO] [stderr]    Compiling ink_prelude v3.0.0-rc4
[INFO] [stderr]    Compiling getrandom v0.2.11
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.17
[INFO] [stderr]    Compiling ryu v1.0.16
[INFO] [stderr]    Compiling rayon-core v1.12.0
[INFO] [stderr]    Compiling itoa v1.0.10
[INFO] [stderr]    Compiling regex v1.10.2
[INFO] [stderr]    Compiling serde_json v1.0.111
[INFO] [stderr]    Compiling block-padding v0.2.1
[INFO] [stderr]    Compiling crossbeam-deque v0.8.4
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling unicode-width v0.1.11
[INFO] [stderr]    Compiling unicode-segmentation v1.10.1
[INFO] [stderr]    Compiling plotters-backend v0.3.5
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling integer-sqrt v0.1.5
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling plotters-svg v0.3.5
[INFO] [stderr]    Compiling csv-core v0.1.11
[INFO] [stderr]    Compiling cpufeatures v0.2.12
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]    Compiling sp-std v3.0.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling half v1.8.2
[INFO] [stderr]    Compiling cast v0.3.0
[INFO] [stderr]    Compiling keccak v0.1.4
[INFO] [stderr]    Compiling criterion-plot v0.4.5
[INFO] [stderr]    Compiling sha3 v0.9.1
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling impl-trait-for-tuples v0.2.2
[INFO] [stderr]    Compiling parity-scale-codec-derive v2.3.1
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]    Compiling scale-info-derive v0.4.0
[INFO] [stderr]    Compiling sp-debug-derive v3.0.0
[INFO] [stderr]    Compiling walkdir v2.4.0
[INFO] [stderr]    Compiling rayon v1.8.0
[INFO] [stderr]    Compiling sha2 v0.9.9
[INFO] [stderr]    Compiling plotters v0.3.5
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling ink_lang_ir v3.0.0-rc4
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling impl-serde v0.3.2
[INFO] [stderr]    Compiling ink_allocator v3.0.0-rc4
[INFO] [stderr]    Compiling arrayref v0.3.7
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling ink_storage_derive v3.0.0-rc4
[INFO] [stderr]    Compiling array-init v2.1.0
[INFO] [stderr]    Compiling serde_cbor v0.11.2
[INFO] [stderr]    Compiling csv v1.3.0
[INFO] [stderr]    Compiling parity-scale-codec v2.3.1
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling criterion v0.3.6
[INFO] [stderr]    Compiling scale-info v0.6.0
[INFO] [stderr]    Compiling sp-arithmetic v3.0.0
[INFO] [stderr]    Compiling ink_lang_codegen v3.0.0-rc4
[INFO] [stderr]    Compiling ink_primitives v3.0.0-rc4
[INFO] [stderr]    Compiling ink_metadata v3.0.0-rc4
[INFO] [stderr]    Compiling ink_env v3.0.0-rc4
[INFO] [stderr]    Compiling ink_lang_macro v3.0.0-rc4
[INFO] [stderr]    Compiling ink_storage v3.0.0-rc4
[INFO] [stderr]    Compiling ink_lang v3.0.0-rc4
[INFO] [stderr]    Compiling ddc_bucket v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(proc_macro_hygiene)] // for tests in a separate file
[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 `ddc_bucket` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "18b1d9b11c88361c60d2f9df21a0eded0fa210c7f3f90af385969486180b7ea7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18b1d9b11c88361c60d2f9df21a0eded0fa210c7f3f90af385969486180b7ea7", kill_on_drop: false }`
[INFO] [stdout] 18b1d9b11c88361c60d2f9df21a0eded0fa210c7f3f90af385969486180b7ea7
