[INFO] fetching crate nyar-macro 0.1.1...
[INFO] testing nyar-macro-0.1.1 against 1.91.0 for beta-1.92-2
[INFO] extracting crate nyar-macro 0.1.1 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate nyar-macro 0.1.1
[INFO] finished tweaking crates.io crate nyar-macro 0.1.1
[INFO] tweaked toml for crates.io crate nyar-macro 0.1.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate nyar-macro 0.1.1 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 28 packages to latest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.108)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 017160d0b3ff2c5a4bbea601bb99501933b5961c7ec422e08a05034fc83657f6
[INFO] running `Command { std: "docker" "start" "-a" "017160d0b3ff2c5a4bbea601bb99501933b5961c7ec422e08a05034fc83657f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "017160d0b3ff2c5a4bbea601bb99501933b5961c7ec422e08a05034fc83657f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "017160d0b3ff2c5a4bbea601bb99501933b5961c7ec422e08a05034fc83657f6", kill_on_drop: false }`
[INFO] [stdout] 017160d0b3ff2c5a4bbea601bb99501933b5961c7ec422e08a05034fc83657f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7cd96d3f5d1668f56dbfba0c76ac67f458580162cb31fe76c4ebf1141f6118c5
[INFO] running `Command { std: "docker" "start" "-a" "7cd96d3f5d1668f56dbfba0c76ac67f458580162cb31fe76c4ebf1141f6118c5", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling nyar-macro v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_quote)]
[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:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(proc_macro_expand)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `parse2` and `parse_macro_input`
[INFO] [stdout]  --> src/attributes/mod.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | use syn::{parse2, parse_macro_input};
[INFO] [stdout]   |           ^^^^^^  ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]  --> src/attributes/mod.rs:9:25
[INFO] [stdout]   |
[INFO] [stdout] 9 |     input.format_quote(|t| {
[INFO] [stdout]   |                         ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/attributes/mod.rs:29:18
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn v_methods(input: TokenStream, args: TokenStream) -> TokenStream {
[INFO] [stdout]    |                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/attributes/mod.rs:29:38
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn v_methods(input: TokenStream, args: TokenStream) -> TokenStream {
[INFO] [stdout]    |                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nyar-macro` (lib) due to 2 previous errors; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "7cd96d3f5d1668f56dbfba0c76ac67f458580162cb31fe76c4ebf1141f6118c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cd96d3f5d1668f56dbfba0c76ac67f458580162cb31fe76c4ebf1141f6118c5", kill_on_drop: false }`
[INFO] [stdout] 7cd96d3f5d1668f56dbfba0c76ac67f458580162cb31fe76c4ebf1141f6118c5