[INFO] fetching crate import_generated_code 0.1.0...
[INFO] testing import_generated_code-0.1.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate import_generated_code 0.1.0 into /workspace/builds/worker-107/source
[INFO] validating manifest of crates.io crate import_generated_code 0.1.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate import_generated_code 0.1.0
[INFO] finished tweaking crates.io crate import_generated_code 0.1.0
[INFO] tweaked toml for crates.io crate import_generated_code 0.1.0 written to /workspace/builds/worker-107/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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" "+1.60.0" "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-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ecc5c25459b0da921122829aabcb29ce44aec449237bf167d39f7a23be947c11
[INFO] running `Command { std: "docker" "start" "-a" "ecc5c25459b0da921122829aabcb29ce44aec449237bf167d39f7a23be947c11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ecc5c25459b0da921122829aabcb29ce44aec449237bf167d39f7a23be947c11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecc5c25459b0da921122829aabcb29ce44aec449237bf167d39f7a23be947c11", kill_on_drop: false }`
[INFO] [stdout] ecc5c25459b0da921122829aabcb29ce44aec449237bf167d39f7a23be947c11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 67ddcf1a23196eb3e893806daf4f22953cc4a49ea8778cf060c1bb002937f2ce
[INFO] running `Command { std: "docker" "start" "-a" "67ddcf1a23196eb3e893806daf4f22953cc4a49ea8778cf060c1bb002937f2ce", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling import_generated_code v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `import_generated_code` due to 2 previous errors; 1 warning emitted
[INFO] [stdout] warning: unused import: `Token`
[INFO] [stdout]  --> src/lib.rs:8:56
[INFO] [stdout]   |
[INFO] [stdout] 8 | use syn::{parse_macro_input, Expr, Ident, Lit, Result, Token};
[INFO] [stdout]   |                                                        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_diagnostic)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "67ddcf1a23196eb3e893806daf4f22953cc4a49ea8778cf060c1bb002937f2ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67ddcf1a23196eb3e893806daf4f22953cc4a49ea8778cf060c1bb002937f2ce", kill_on_drop: false }`
[INFO] [stdout] 67ddcf1a23196eb3e893806daf4f22953cc4a49ea8778cf060c1bb002937f2ce