[INFO] fetching crate yew-router-min-macro 0.8.0...
[INFO] testing yew-router-min-macro-0.8.0 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate yew-router-min-macro 0.8.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate yew-router-min-macro 0.8.0 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate yew-router-min-macro 0.8.0
[INFO] finished tweaking crates.io crate yew-router-min-macro 0.8.0
[INFO] tweaked toml for crates.io crate yew-router-min-macro 0.8.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "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-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4485c8d909640e0be0fa911f0f1e414de20ee4cbc5b1b95c6e331f7afb494d27
[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" "4485c8d909640e0be0fa911f0f1e414de20ee4cbc5b1b95c6e331f7afb494d27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4485c8d909640e0be0fa911f0f1e414de20ee4cbc5b1b95c6e331f7afb494d27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4485c8d909640e0be0fa911f0f1e414de20ee4cbc5b1b95c6e331f7afb494d27", kill_on_drop: false }`
[INFO] [stdout] 4485c8d909640e0be0fa911f0f1e414de20ee4cbc5b1b95c6e331f7afb494d27
[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=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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", 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] 649fabb6d9dd8c5f1aa46264c66500a45caeb7e1db605d05d260c6f94daafa9a
[INFO] running `Command { std: "docker" "start" "-a" "649fabb6d9dd8c5f1aa46264c66500a45caeb7e1db605d05d260c6f94daafa9a", kill_on_drop: false }`
[INFO] [stderr]    Compiling yew-router-min-route-parser v0.8.0
[INFO] [stderr]    Compiling yew-router-min-macro v0.8.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `syn::export`
[INFO] [stdout]  --> src/switch.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     export::TokenStream2, parse_macro_input, Data, DeriveInput, Fields, GenericParam, Generics,
[INFO] [stdout]   |     ^^^^^^ could not find `export` in `syn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `syn::export`
[INFO] [stdout]  --> src/switch/enum_impl.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | use syn::{export::TokenStream2, Field, Fields, Generics, Ident, Type};
[INFO] [stdout]   |           ^^^^^^ could not find `export` in `syn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `syn::export`
[INFO] [stdout]  --> src/switch/shadow.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | use syn::export::TokenStream2;
[INFO] [stdout]   |          ^^^^^^ could not find `export` in `syn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `syn::export`
[INFO] [stdout]  --> src/switch/struct_impl.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     export::{TokenStream, TokenStream2},
[INFO] [stdout]   |     ^^^^^^ could not find `export` in `syn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `yew-router-min-macro` due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "649fabb6d9dd8c5f1aa46264c66500a45caeb7e1db605d05d260c6f94daafa9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "649fabb6d9dd8c5f1aa46264c66500a45caeb7e1db605d05d260c6f94daafa9a", kill_on_drop: false }`
[INFO] [stdout] 649fabb6d9dd8c5f1aa46264c66500a45caeb7e1db605d05d260c6f94daafa9a
