[INFO] fetching crate inexor-rgf-model-connector 0.9.1...
[INFO] documenting inexor-rgf-model-connector-0.9.1 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate inexor-rgf-model-connector 0.9.1 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate inexor-rgf-model-connector 0.9.1 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 inexor-rgf-model-connector 0.9.1
[INFO] finished tweaking crates.io crate inexor-rgf-model-connector 0.9.1
[INFO] tweaked toml for crates.io crate inexor-rgf-model-connector 0.9.1 written to /workspace/builds/worker-7-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 destructure_traitobject v0.2.0
[INFO] [stderr]   Downloaded typemap-ors v1.0.0
[INFO] [stderr]   Downloaded log4rs v1.2.0
[INFO] [stderr]   Downloaded thread-id v4.2.1
[INFO] [stderr]   Downloaded log-mdc v0.1.0
[INFO] [stderr]   Downloaded unsafe-any-ors v1.0.0
[INFO] [stderr]   Downloaded inexor-rgf-core-frp v0.9.1
[INFO] [stderr]   Downloaded inexor-rgf-core-model v0.9.1
[INFO] [stderr]   Downloaded indradb-lib v3.0.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] b0f208d80fd0143980c5a2e7cbcb1d46cf05bed52b1f82503180dad8f1e5f956
[INFO] running `Command { std: "docker" "start" "-a" "b0f208d80fd0143980c5a2e7cbcb1d46cf05bed52b1f82503180dad8f1e5f956", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b0f208d80fd0143980c5a2e7cbcb1d46cf05bed52b1f82503180dad8f1e5f956", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0f208d80fd0143980c5a2e7cbcb1d46cf05bed52b1f82503180dad8f1e5f956", kill_on_drop: false }`
[INFO] [stdout] b0f208d80fd0143980c5a2e7cbcb1d46cf05bed52b1f82503180dad8f1e5f956
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1f34c6933be1b47487431136955a4a28408177477e20fe30d482ca2452385e8c
[INFO] running `Command { std: "docker" "start" "-a" "1f34c6933be1b47487431136955a4a28408177477e20fe30d482ca2452385e8c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling serde v1.0.195
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling crossbeam-utils v0.8.18
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]     Checking ryu v1.0.16
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling serde_json v1.0.111
[INFO] [stderr]     Checking smallvec v1.11.2
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]    Compiling thiserror v1.0.56
[INFO] [stderr]    Compiling rayon-core v1.12.0
[INFO] [stderr]     Checking iana-time-zone v0.1.59
[INFO] [stderr]    Compiling rustix v0.38.28
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking linked-hash-map v0.5.6
[INFO] [stderr]     Checking destructure_traitobject v0.2.0
[INFO] [stderr]    Compiling anyhow v1.0.79
[INFO] [stderr]     Checking linux-raw-sys v0.4.12
[INFO] [stderr]     Checking unsafe-any-ors v1.0.0
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking sha1_smol v1.0.0
[INFO] [stderr]     Checking bitflags v2.4.1
[INFO] [stderr]    Compiling rustversion v1.0.14
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking atomic v0.5.3
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking typemap-ors v1.0.0
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking log-mdc v0.1.0
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking fastrand v2.0.1
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking arc-swap v1.6.0
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]     Checking hashbrown v0.14.3
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking crossbeam-epoch v0.9.17
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.4
[INFO] [stderr]     Checking rayon v1.8.0
[INFO] [stderr]     Checking getrandom v0.2.11
[INFO] [stderr]     Checking thread-id v4.2.1
[INFO] [stderr]     Checking ordered-float v2.10.1
[INFO] [stderr]     Checking rmp v0.8.12
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking dashmap v5.5.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking tempfile v3.9.0
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling strum_macros v0.24.3
[INFO] [stderr]    Compiling serde_derive v1.0.195
[INFO] [stderr]    Compiling thiserror-impl v1.0.56
[INFO] [stderr]     Checking strum v0.24.1
[INFO] [stderr]     Checking chrono v0.4.31
[INFO] [stderr]     Checking serde_yaml v0.8.26
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking serde-value v0.7.0
[INFO] [stderr]     Checking toml v0.5.11
[INFO] [stderr]     Checking uuid v1.6.1
[INFO] [stderr]     Checking rmp-serde v1.1.2
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking log4rs v1.2.0
[INFO] [stderr]     Checking indradb-lib v3.0.4
[INFO] [stderr]     Checking inexor-rgf-core-frp v0.9.1
[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/inexor-rgf-core-frp-0.9.1/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(unsized_tuple_coercion)]
[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/inexor-rgf-core-frp-0.9.1/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(unboxed_closures)]
[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/inexor-rgf-core-frp-0.9.1/src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(register_tool)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 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 `inexor-rgf-core-frp` (lib) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "1f34c6933be1b47487431136955a4a28408177477e20fe30d482ca2452385e8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f34c6933be1b47487431136955a4a28408177477e20fe30d482ca2452385e8c", kill_on_drop: false }`
[INFO] [stdout] 1f34c6933be1b47487431136955a4a28408177477e20fe30d482ca2452385e8c
[INFO] documenting inexor-rgf-model-connector-0.9.1 against beta-2023-12-22 for beta-1.76-rustdoc-1
[INFO] extracting crate inexor-rgf-model-connector 0.9.1 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate inexor-rgf-model-connector 0.9.1 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 inexor-rgf-model-connector 0.9.1
[INFO] finished tweaking crates.io crate inexor-rgf-model-connector 0.9.1
[INFO] tweaked toml for crates.io crate inexor-rgf-model-connector 0.9.1 written to /workspace/builds/worker-7-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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] f5ab202e35e4120e3f0df5548e02fd3e03f425b279044d36668bd13de395078e
[INFO] running `Command { std: "docker" "start" "-a" "f5ab202e35e4120e3f0df5548e02fd3e03f425b279044d36668bd13de395078e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f5ab202e35e4120e3f0df5548e02fd3e03f425b279044d36668bd13de395078e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5ab202e35e4120e3f0df5548e02fd3e03f425b279044d36668bd13de395078e", kill_on_drop: false }`
[INFO] [stdout] f5ab202e35e4120e3f0df5548e02fd3e03f425b279044d36668bd13de395078e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3f1bc4b8bd25b152c8eb1871f67b89ca1ceb175577d6e3b848215c0f21af8f6f
[INFO] running `Command { std: "docker" "start" "-a" "3f1bc4b8bd25b152c8eb1871f67b89ca1ceb175577d6e3b848215c0f21af8f6f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling serde v1.0.195
[INFO] [stderr]    Compiling crossbeam-utils v0.8.18
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]     Checking smallvec v1.11.2
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]     Checking ryu v1.0.16
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]    Compiling serde_json v1.0.111
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling rustix v0.38.28
[INFO] [stderr]    Compiling rayon-core v1.12.0
[INFO] [stderr]    Compiling anyhow v1.0.79
[INFO] [stderr]     Checking destructure_traitobject v0.2.0
[INFO] [stderr]     Checking linked-hash-map v0.5.6
[INFO] [stderr]     Checking iana-time-zone v0.1.59
[INFO] [stderr]    Compiling thiserror v1.0.56
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking unsafe-any-ors v1.0.0
[INFO] [stderr]     Checking atomic v0.5.3
[INFO] [stderr]    Compiling rustversion v1.0.14
[INFO] [stderr]     Checking bitflags v2.4.1
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking linux-raw-sys v0.4.12
[INFO] [stderr]     Checking sha1_smol v1.0.0
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking typemap-ors v1.0.0
[INFO] [stderr]     Checking log-mdc v0.1.0
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking arc-swap v1.6.0
[INFO] [stderr]     Checking fastrand v2.0.1
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking hashbrown v0.14.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking crossbeam-epoch v0.9.17
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.4
[INFO] [stderr]     Checking rayon v1.8.0
[INFO] [stderr]     Checking getrandom v0.2.11
[INFO] [stderr]     Checking thread-id v4.2.1
[INFO] [stderr]     Checking ordered-float v2.10.1
[INFO] [stderr]     Checking rmp v0.8.12
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking dashmap v5.5.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking tempfile v3.9.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling strum_macros v0.24.3
[INFO] [stderr]    Compiling serde_derive v1.0.195
[INFO] [stderr]    Compiling thiserror-impl v1.0.56
[INFO] [stderr]     Checking strum v0.24.1
[INFO] [stderr]     Checking chrono v0.4.31
[INFO] [stderr]     Checking serde_yaml v0.8.26
[INFO] [stderr]     Checking uuid v1.6.1
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking toml v0.5.11
[INFO] [stderr]     Checking serde-value v0.7.0
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking rmp-serde v1.1.2
[INFO] [stderr]     Checking log4rs v1.2.0
[INFO] [stderr]     Checking indradb-lib v3.0.4
[INFO] [stderr]     Checking inexor-rgf-core-frp v0.9.1
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/inexor-rgf-core-frp-0.9.1/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(unsized_tuple_coercion)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/inexor-rgf-core-frp-0.9.1/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(unboxed_closures)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/inexor-rgf-core-frp-0.9.1/src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(register_tool)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 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 `inexor-rgf-core-frp` (lib) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "3f1bc4b8bd25b152c8eb1871f67b89ca1ceb175577d6e3b848215c0f21af8f6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f1bc4b8bd25b152c8eb1871f67b89ca1ceb175577d6e3b848215c0f21af8f6f", kill_on_drop: false }`
[INFO] [stdout] 3f1bc4b8bd25b152c8eb1871f67b89ca1ceb175577d6e3b848215c0f21af8f6f
