[INFO] fetching crate herald_derive 0.1.0...
[INFO] checking herald_derive-0.1.0 against master#0a8629bff642c3c3b84bb644c0099194f063b627 for pr-86231
[INFO] extracting crate herald_derive 0.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate herald_derive 0.1.0 on toolchain 0a8629bff642c3c3b84bb644c0099194f063b627
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0a8629bff642c3c3b84bb644c0099194f063b627" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate herald_derive 0.1.0
[INFO] finished tweaking crates.io crate herald_derive 0.1.0
[INFO] tweaked toml for crates.io crate herald_derive 0.1.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0a8629bff642c3c3b84bb644c0099194f063b627" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0a8629bff642c3c3b84bb644c0099194f063b627" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+0a8629bff642c3c3b84bb644c0099194f063b627" "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] 84aae2366f17c076e4eb4e6fadd6a7a65959d07447e52c1edc0763302f722be6
[INFO] running `Command { std: "docker" "start" "-a" "84aae2366f17c076e4eb4e6fadd6a7a65959d07447e52c1edc0763302f722be6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "84aae2366f17c076e4eb4e6fadd6a7a65959d07447e52c1edc0763302f722be6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84aae2366f17c076e4eb4e6fadd6a7a65959d07447e52c1edc0763302f722be6", kill_on_drop: false }`
[INFO] [stdout] 84aae2366f17c076e4eb4e6fadd6a7a65959d07447e52c1edc0763302f722be6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+0a8629bff642c3c3b84bb644c0099194f063b627" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e6df1db73427a58df41765695d5177638f6749847cdc40f55c7281c46fd4f6ec
[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" "e6df1db73427a58df41765695d5177638f6749847cdc40f55c7281c46fd4f6ec", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]     Checking herald_derive v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no variant or associated item named `__Nonexhaustive` found for enum `syn::Type` in the current scope
[INFO] [stdout]    --> src/lib.rs:406:13
[INFO] [stdout]     |
[INFO] [stdout] 406 |       Type::__Nonexhaustive => unreachable!(),
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             variant or associated item not found in `syn::Type`
[INFO] [stdout]     |             help: there is a variant with a similar name: `__TestExhaustive`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `herald_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] [stdout] error[E0599]: no variant or associated item named `__Nonexhaustive` found for enum `syn::Type` in the current scope
[INFO] [stdout]    --> src/lib.rs:406:13
[INFO] [stdout]     |
[INFO] [stdout] 406 |       Type::__Nonexhaustive => unreachable!(),
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             variant or associated item not found in `syn::Type`
[INFO] [stdout]     |             help: there is a variant with a similar name: `__TestExhaustive`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "e6df1db73427a58df41765695d5177638f6749847cdc40f55c7281c46fd4f6ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6df1db73427a58df41765695d5177638f6749847cdc40f55c7281c46fd4f6ec", kill_on_drop: false }`
[INFO] [stdout] e6df1db73427a58df41765695d5177638f6749847cdc40f55c7281c46fd4f6ec