[INFO] fetching crate glade_derive 0.1.0-alpha...
[INFO] testing glade_derive-0.1.0-alpha against 1.55.0 for beta-1.56-1
[INFO] extracting crate glade_derive 0.1.0-alpha into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate glade_derive 0.1.0-alpha on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate glade_derive 0.1.0-alpha
[INFO] finished tweaking crates.io crate glade_derive 0.1.0-alpha
[INFO] tweaked toml for crates.io crate glade_derive 0.1.0-alpha written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d23211828697a110da4dd6f54dcf6878e1dcf0bfca6de0394176d8f30c120ab8
[INFO] running `Command { std: "docker" "start" "-a" "d23211828697a110da4dd6f54dcf6878e1dcf0bfca6de0394176d8f30c120ab8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d23211828697a110da4dd6f54dcf6878e1dcf0bfca6de0394176d8f30c120ab8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d23211828697a110da4dd6f54dcf6878e1dcf0bfca6de0394176d8f30c120ab8", kill_on_drop: false }`
[INFO] [stdout] d23211828697a110da4dd6f54dcf6878e1dcf0bfca6de0394176d8f30c120ab8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d2734b36246925c3c4d304e7e32aad9199a278ff333e70bb13226a20b84461f8
[INFO] running `Command { std: "docker" "start" "-a" "d2734b36246925c3c4d304e7e32aad9199a278ff333e70bb13226a20b84461f8", kill_on_drop: false }`
[INFO] [stderr]    Compiling amplify_num v0.2.2
[INFO] [stderr]    Compiling amplify_syn v1.1.6
[INFO] [stderr]    Compiling amplify_derive v0.1.3
[INFO] [stdout] error[E0432]: unresolved import `syn::export`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/amplify_derive-0.1.3/src/as_any.rs:17:10
[INFO] [stdout]    |
[INFO] [stdout] 17 | use syn::export::{Span, ToTokens, TokenStream, TokenStream2};
[INFO] [stdout]    |          ^^^^^^ could not find `export` in `syn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `syn::export`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/amplify_derive-0.1.3/src/display.rs:17:10
[INFO] [stdout]    |
[INFO] [stdout] 17 | use syn::export::{Span, ToTokens, TokenStream, TokenStream2};
[INFO] [stdout]    |          ^^^^^^ could not find `export` in `syn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `syn::export`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/amplify_derive-0.1.3/src/getters.rs:17:10
[INFO] [stdout]    |
[INFO] [stdout] 17 | use syn::export::{Span, ToTokens, TokenStream, TokenStream2};
[INFO] [stdout]    |          ^^^^^^ could not find `export` in `syn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `syn::export`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/amplify_derive-0.1.3/src/lib.rs:31:10
[INFO] [stdout]    |
[INFO] [stdout] 31 | use syn::export::TokenStream;
[INFO] [stdout]    |          ^^^^^^ could not find `export` in `syn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/amplify_derive-0.1.3/src/lib.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | #![feature(try_find)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `amplify_derive` due to 6 previous errors
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] Some errors have detailed explanations: E0432, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "d2734b36246925c3c4d304e7e32aad9199a278ff333e70bb13226a20b84461f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2734b36246925c3c4d304e7e32aad9199a278ff333e70bb13226a20b84461f8", kill_on_drop: false }`
[INFO] [stdout] d2734b36246925c3c4d304e7e32aad9199a278ff333e70bb13226a20b84461f8