[INFO] fetching crate dust 0.1.0...
[INFO] testing dust-0.1.0 against 1.75.0 for beta-1.76-1
[INFO] extracting crate dust 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate dust 0.1.0 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 dust 0.1.0
[INFO] finished tweaking crates.io crate dust 0.1.0
[INFO] tweaked toml for crates.io crate dust 0.1.0 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]     Blocking waiting for file lock on package cache
[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]     Blocking waiting for file lock on package cache
[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] 476dd6c1b66515752715ffa3c72c1fbce6fc9d53b77848340cc8bc4b057d27f7
[INFO] running `Command { std: "docker" "start" "-a" "476dd6c1b66515752715ffa3c72c1fbce6fc9d53b77848340cc8bc4b057d27f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "476dd6c1b66515752715ffa3c72c1fbce6fc9d53b77848340cc8bc4b057d27f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "476dd6c1b66515752715ffa3c72c1fbce6fc9d53b77848340cc8bc4b057d27f7", kill_on_drop: false }`
[INFO] [stdout] 476dd6c1b66515752715ffa3c72c1fbce6fc9d53b77848340cc8bc4b057d27f7
[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] 8297311f9b9af66741298e859a6083f58f116c67c284373754b5aee40dc0a613
[INFO] running `Command { std: "docker" "start" "-a" "8297311f9b9af66741298e859a6083f58f116c67c284373754b5aee40dc0a613", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling proc-macro2 v0.2.3
[INFO] [stderr]    Compiling dust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(quote, concat_idents, plugin_registrar, rustc_private)]
[INFO] [stdout]   |            ^^^^^ feature has been removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:3:34
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(quote, concat_idents, plugin_registrar, rustc_private)]
[INFO] [stdout]   |                                  ^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: plugins are no longer supported
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(custom_attribute)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: removed in favor of `#![register_tool]` and `#![register_attr]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `rustc_plugin`
[INFO] [stdout]  --> src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | extern crate rustc_plugin;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe you need to install the missing components with: `rustup component add rust-src rustc-dev llvm-tools-preview`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `syntax`
[INFO] [stdout]  --> src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | extern crate syntax;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `quote_item` in this scope
[INFO] [stdout]   --> src/lib.rs:48:36
[INFO] [stdout]    |
[INFO] [stdout] 48 |             push(Annotatable::Item(quote_item!(ecx,
[INFO] [stdout]    |                                    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `plugin_registrar` in this scope
[INFO] [stdout]   --> src/lib.rs:78:3
[INFO] [stdout]    |
[INFO] [stdout] 78 | #[plugin_registrar]
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `plugin_registrar` is in scope, but it is a function, not an attribute
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Ident` in this scope
[INFO] [stdout]  --> src/function.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 |     ident: Ident,
[INFO] [stdout]   |            ^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `FnDecl` in this scope
[INFO] [stdout]  --> src/function.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 |     decl: FnDecl,
[INFO] [stdout]   |           ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Attribute` in this scope
[INFO] [stdout]  --> src/function.rs:9:16
[INFO] [stdout]   |
[INFO] [stdout] 9 |     attrs: Vec<Attribute>,
[INFO] [stdout]   |                ^^^^^^^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: you might be missing a type parameter
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Function<Attribute> {
[INFO] [stdout]   |                    +++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Ident` in this scope
[INFO] [stdout]   --> src/function.rs:32:29
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn ident(&self) -> &Ident {
[INFO] [stdout]    |                             ^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Attribute` in this scope
[INFO] [stdout]   --> src/function.rs:36:33
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn attrs(&self) -> &Vec<Attribute> {
[INFO] [stdout]    |                                 ^^^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: you might be missing a type parameter
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl<Attribute> Function {
[INFO] [stdout]    |     +++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(quote, concat_idents, plugin_registrar, rustc_private)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(custom_attribute)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:3:19
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(quote, concat_idents, plugin_registrar, rustc_private)]
[INFO] [stdout]   |                   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `ItemKind`
[INFO] [stdout]   --> src/function.rs:16:17
[INFO] [stdout]    |
[INFO] [stdout] 16 |                 ItemKind::Fn(ref decl, ..) => {
[INFO] [stdout]    |                 ^^^^^^^^ use of undeclared type `ItemKind`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 16 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0433, E0463, E0554, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dust` (lib) due to 17 previous errors
[INFO] running `Command { std: "docker" "inspect" "8297311f9b9af66741298e859a6083f58f116c67c284373754b5aee40dc0a613", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8297311f9b9af66741298e859a6083f58f116c67c284373754b5aee40dc0a613", kill_on_drop: false }`
[INFO] [stdout] 8297311f9b9af66741298e859a6083f58f116c67c284373754b5aee40dc0a613
[INFO] testing dust-0.1.0 against beta-2023-12-22 for beta-1.76-1
[INFO] extracting crate dust 0.1.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate dust 0.1.0 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 dust 0.1.0
[INFO] finished tweaking crates.io crate dust 0.1.0
[INFO] tweaked toml for crates.io crate dust 0.1.0 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] dad09dc35cc07fdc347d87776fe1cea9cbca2cb12142c72f472f7cbb39b6700d
[INFO] running `Command { std: "docker" "start" "-a" "dad09dc35cc07fdc347d87776fe1cea9cbca2cb12142c72f472f7cbb39b6700d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dad09dc35cc07fdc347d87776fe1cea9cbca2cb12142c72f472f7cbb39b6700d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dad09dc35cc07fdc347d87776fe1cea9cbca2cb12142c72f472f7cbb39b6700d", kill_on_drop: false }`
[INFO] [stdout] dad09dc35cc07fdc347d87776fe1cea9cbca2cb12142c72f472f7cbb39b6700d
[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] 357f66d0af7799520e25ff0ed78bf7329973a2f07bb16b0de3670aa4612cf372
[INFO] running `Command { std: "docker" "start" "-a" "357f66d0af7799520e25ff0ed78bf7329973a2f07bb16b0de3670aa4612cf372", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling proc-macro2 v0.2.3
[INFO] [stderr]    Compiling dust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(quote, concat_idents, plugin_registrar, rustc_private)]
[INFO] [stdout]   |            ^^^^^ feature has been removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:3:34
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(quote, concat_idents, plugin_registrar, rustc_private)]
[INFO] [stdout]   |                                  ^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: plugins are no longer supported
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(custom_attribute)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: removed in favor of `#![register_tool]` and `#![register_attr]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `rustc_plugin`
[INFO] [stdout]  --> src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | extern crate rustc_plugin;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe you need to install the missing components with: `rustup component add rust-src rustc-dev llvm-tools-preview`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `syntax`
[INFO] [stdout]  --> src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | extern crate syntax;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `quote_item` in this scope
[INFO] [stdout]   --> src/lib.rs:48:36
[INFO] [stdout]    |
[INFO] [stdout] 48 |             push(Annotatable::Item(quote_item!(ecx,
[INFO] [stdout]    |                                    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `plugin_registrar` in this scope
[INFO] [stdout]   --> src/lib.rs:78:3
[INFO] [stdout]    |
[INFO] [stdout] 78 | #[plugin_registrar]
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `plugin_registrar` is in scope, but it is a function, not an attribute
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Ident` in this scope
[INFO] [stdout]  --> src/function.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 |     ident: Ident,
[INFO] [stdout]   |            ^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `FnDecl` in this scope
[INFO] [stdout]  --> src/function.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 |     decl: FnDecl,
[INFO] [stdout]   |           ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Attribute` in this scope
[INFO] [stdout]  --> src/function.rs:9:16
[INFO] [stdout]   |
[INFO] [stdout] 9 |     attrs: Vec<Attribute>,
[INFO] [stdout]   |                ^^^^^^^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: you might be missing a type parameter
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Function<Attribute> {
[INFO] [stdout]   |                    +++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Ident` in this scope
[INFO] [stdout]   --> src/function.rs:32:29
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn ident(&self) -> &Ident {
[INFO] [stdout]    |                             ^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Attribute` in this scope
[INFO] [stdout]   --> src/function.rs:36:33
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn attrs(&self) -> &Vec<Attribute> {
[INFO] [stdout]    |                                 ^^^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: you might be missing a type parameter
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl<Attribute> Function {
[INFO] [stdout]    |     +++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(quote, concat_idents, plugin_registrar, rustc_private)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(custom_attribute)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:3:19
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(quote, concat_idents, plugin_registrar, rustc_private)]
[INFO] [stdout]   |                   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `ItemKind`
[INFO] [stdout]   --> src/function.rs:16:17
[INFO] [stdout]    |
[INFO] [stdout] 16 |                 ItemKind::Fn(ref decl, ..) => {
[INFO] [stdout]    |                 ^^^^^^^^ use of undeclared type `ItemKind`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 16 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0433, E0463, E0554, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dust` (lib) due to 17 previous errors
[INFO] running `Command { std: "docker" "inspect" "357f66d0af7799520e25ff0ed78bf7329973a2f07bb16b0de3670aa4612cf372", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "357f66d0af7799520e25ff0ed78bf7329973a2f07bb16b0de3670aa4612cf372", kill_on_drop: false }`
[INFO] [stdout] 357f66d0af7799520e25ff0ed78bf7329973a2f07bb16b0de3670aa4612cf372
