[INFO] fetching crate bian-proc 0.2.0...
[INFO] testing bian-proc-0.2.0 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate bian-proc 0.2.0 into /workspace/builds/worker-30/source
[INFO] validating manifest of crates.io crate bian-proc 0.2.0 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bian-proc 0.2.0
[INFO] finished tweaking crates.io crate bian-proc 0.2.0
[INFO] tweaked toml for crates.io crate bian-proc 0.2.0 written to /workspace/builds/worker-30/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 62c2b0c29eba04666e17c62feccfe702ec3f79d46e4469219a4c488a17a17259
[INFO] running `Command { std: "docker" "start" "-a" "62c2b0c29eba04666e17c62feccfe702ec3f79d46e4469219a4c488a17a17259", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "62c2b0c29eba04666e17c62feccfe702ec3f79d46e4469219a4c488a17a17259", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62c2b0c29eba04666e17c62feccfe702ec3f79d46e4469219a4c488a17a17259", kill_on_drop: false }`
[INFO] [stdout] 62c2b0c29eba04666e17c62feccfe702ec3f79d46e4469219a4c488a17a17259
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8dc63a74e10e91533eabddf9a2fa4a3a57351beae731e915da19da57d30f525f
[INFO] running `Command { std: "docker" "start" "-a" "8dc63a74e10e91533eabddf9a2fa4a3a57351beae731e915da19da57d30f525f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling bian-proc v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved imports `syn::FnArg`, `syn::Pat`
[INFO] [stdout]  --> src/lib.rs:3:30
[INFO] [stdout]   |
[INFO] [stdout] 3 | use syn::{parse_macro_input, FnArg, Pat};
[INFO] [stdout]   |                              ^^^^^  ^^^
[INFO] [stdout]   |                              |      |
[INFO] [stdout]   |                              |      no `Pat` in the root
[INFO] [stdout]   |                              |      help: a similar name exists in the module: `Path`
[INFO] [stdout]   |                              no `FnArg` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `ItemFn` in crate `syn`
[INFO] [stdout]   --> src/lib.rs:21:54
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let mut api_fn = parse_macro_input!(item as syn::ItemFn);
[INFO] [stdout]    |                                                      ^^^^^^ not found in `syn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0432.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bian-proc` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "8dc63a74e10e91533eabddf9a2fa4a3a57351beae731e915da19da57d30f525f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8dc63a74e10e91533eabddf9a2fa4a3a57351beae731e915da19da57d30f525f", kill_on_drop: false }`
[INFO] [stdout] 8dc63a74e10e91533eabddf9a2fa4a3a57351beae731e915da19da57d30f525f