[INFO] cloning repository https://github.com/gitletH/rust-macro-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gitletH/rust-macro-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FgitletH%2Frust-macro-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FgitletH%2Frust-macro-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3a85f231cb9db049557807e3ca17667f5bc4fde7
[INFO] testing gitletH/rust-macro-example against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FgitletH%2Frust-macro-example" "/workspace/builds/worker-87/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-87/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gitletH/rust-macro-example on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gitletH/rust-macro-example
[INFO] finished tweaking git repo https://github.com/gitletH/rust-macro-example
[INFO] tweaked toml for git repo https://github.com/gitletH/rust-macro-example written to /workspace/builds/worker-87/source/Cargo.toml
[INFO] crate git repo https://github.com/gitletH/rust-macro-example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quote v1.0.8
[INFO] [stderr]   Downloaded proc-macro2 v1.0.24
[INFO] [stderr]   Downloaded syn v1.0.60
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c5d74cbff8a0a2abea73ad8ab5ecce7db4354a19226687d6203feea4f4dfb999
[INFO] running `Command { std: "docker" "start" "-a" "c5d74cbff8a0a2abea73ad8ab5ecce7db4354a19226687d6203feea4f4dfb999", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c5d74cbff8a0a2abea73ad8ab5ecce7db4354a19226687d6203feea4f4dfb999", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5d74cbff8a0a2abea73ad8ab5ecce7db4354a19226687d6203feea4f4dfb999", kill_on_drop: false }`
[INFO] [stdout] c5d74cbff8a0a2abea73ad8ab5ecce7db4354a19226687d6203feea4f4dfb999
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7a187cd5f3acab6161e756b719d01a9bac40a028cca121109b3f2f286ea83891
[INFO] running `Command { std: "docker" "start" "-a" "7a187cd5f3acab6161e756b719d01a9bac40a028cca121109b3f2f286ea83891", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling lib1 v0.1.0 (/opt/rustwide/workdir/lib1)
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling lib v0.1.0 (/opt/rustwide/workdir/lib)
[INFO] [stdout] warning: unused imports: `Error`, `parse_quote`
[INFO] [stdout]  --> lib/src/lib.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 | use syn::{parse_quote, Error, parse_macro_input, DeriveInput, Data};
[INFO] [stdout]   |           ^^^^^^^^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `attr`
[INFO] [stdout]   --> lib/src/lib.rs:55:25
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn AssertReturnSync(attr: TokenStream, item: TokenStream) -> TokenStream {
[INFO] [stdout]    |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_attr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> lib/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(log_syntax)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `AssertReturnSync` should have a snake case name
[INFO] [stdout]   --> lib/src/lib.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn AssertReturnSync(attr: TokenStream, item: TokenStream) -> TokenStream {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `assert_return_sync`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lib` due to 2 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "7a187cd5f3acab6161e756b719d01a9bac40a028cca121109b3f2f286ea83891", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a187cd5f3acab6161e756b719d01a9bac40a028cca121109b3f2f286ea83891", kill_on_drop: false }`
[INFO] [stdout] 7a187cd5f3acab6161e756b719d01a9bac40a028cca121109b3f2f286ea83891