[INFO] fetching crate relm-derive 0.20.0...
[INFO] checking relm-derive-0.20.0 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate relm-derive 0.20.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate relm-derive 0.20.0 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate relm-derive 0.20.0
[INFO] finished tweaking crates.io crate relm-derive 0.20.0
[INFO] tweaked toml for crates.io crate relm-derive 0.20.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "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] c483c131933741ba8714e0b3e13ea9c16cff0ab294938cb48b7abadd5a2f46dc
[INFO] running `Command { std: "docker" "start" "-a" "c483c131933741ba8714e0b3e13ea9c16cff0ab294938cb48b7abadd5a2f46dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c483c131933741ba8714e0b3e13ea9c16cff0ab294938cb48b7abadd5a2f46dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c483c131933741ba8714e0b3e13ea9c16cff0ab294938cb48b7abadd5a2f46dc", kill_on_drop: false }`
[INFO] [stdout] c483c131933741ba8714e0b3e13ea9c16cff0ab294938cb48b7abadd5a2f46dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8f3a8c59e4a66dea2a85103b7f00d91d6aa1847ad2d0adc0c12cbc74a27a31d2
[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" "8f3a8c59e4a66dea2a85103b7f00d91d6aa1847ad2d0adc0c12cbc74a27a31d2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking quote v0.6.13
[INFO] [stderr]     Checking relm-derive v0.20.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `syn::parse_expr`
[INFO] [stdout]    --> src/gen/mod.rs:648:9
[INFO] [stdout]     |
[INFO] [stdout] 648 |     use syn::parse_expr;
[INFO] [stdout]     |         ^^^^^----------
[INFO] [stdout]     |         |    |
[INFO] [stdout]     |         |    help: a similar name exists in the module: `parse_str`
[INFO] [stdout]     |         no `parse_expr` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `syn::ExprKind`
[INFO] [stdout]    --> src/gen/mod.rs:649:15
[INFO] [stdout]     |
[INFO] [stdout] 649 |     use syn::{ExprKind};
[INFO] [stdout]     |               ^^^^^^^^ no `ExprKind` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 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 `relm-derive`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "8f3a8c59e4a66dea2a85103b7f00d91d6aa1847ad2d0adc0c12cbc74a27a31d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f3a8c59e4a66dea2a85103b7f00d91d6aa1847ad2d0adc0c12cbc74a27a31d2", kill_on_drop: false }`
[INFO] [stdout] 8f3a8c59e4a66dea2a85103b7f00d91d6aa1847ad2d0adc0c12cbc74a27a31d2