[INFO] fetching crate json_schema_test_suite_proc_macro 0.3.0...
[INFO] testing json_schema_test_suite_proc_macro-0.3.0 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate json_schema_test_suite_proc_macro 0.3.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate json_schema_test_suite_proc_macro 0.3.0 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate json_schema_test_suite_proc_macro 0.3.0
[INFO] finished tweaking crates.io crate json_schema_test_suite_proc_macro 0.3.0
[INFO] tweaked toml for crates.io crate json_schema_test_suite_proc_macro 0.3.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7d251583a7a7a60a1a882cd7659bee5aa2ed2b25ef2e7e8c052c277100bf620d
[INFO] running `Command { std: "docker" "start" "-a" "7d251583a7a7a60a1a882cd7659bee5aa2ed2b25ef2e7e8c052c277100bf620d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d251583a7a7a60a1a882cd7659bee5aa2ed2b25ef2e7e8c052c277100bf620d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d251583a7a7a60a1a882cd7659bee5aa2ed2b25ef2e7e8c052c277100bf620d", kill_on_drop: false }`
[INFO] [stdout] 7d251583a7a7a60a1a882cd7659bee5aa2ed2b25ef2e7e8c052c277100bf620d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7aca99e95160bf566b47dd8da5b077d68e57bb3605170450ec0790f34678f871
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7aca99e95160bf566b47dd8da5b077d68e57bb3605170450ec0790f34678f871", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling serde_json v1.0.71
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling json_schema_test_suite_test_case v0.3.0
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling json_schema_test_suite_proc_macro v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `syn::ItemFn`
[INFO] [stdout]   --> src/lib.rs:41:37
[INFO] [stdout]    |
[INFO] [stdout] 41 | use syn::{parse_macro_input, Ident, ItemFn};
[INFO] [stdout]    |                                     ^^^^^^ no `ItemFn` in the root
[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 E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `json_schema_test_suite_proc_macro` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "7aca99e95160bf566b47dd8da5b077d68e57bb3605170450ec0790f34678f871", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7aca99e95160bf566b47dd8da5b077d68e57bb3605170450ec0790f34678f871", kill_on_drop: false }`
[INFO] [stdout] 7aca99e95160bf566b47dd8da5b077d68e57bb3605170450ec0790f34678f871