[INFO] fetching crate herald_derive 0.1.0...
[INFO] checking herald_derive-0.1.0 against master#f5f33ec0e0455eefa72fc5567eb1280a4d5ee206 for pr-83312
[INFO] extracting crate herald_derive 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate herald_derive 0.1.0 on toolchain f5f33ec0e0455eefa72fc5567eb1280a4d5ee206
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "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-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 27178d0f29e5403574aca6d7fafcfc705b0bc64d417acea3a79cd9b2fd164beb
[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" "27178d0f29e5403574aca6d7fafcfc705b0bc64d417acea3a79cd9b2fd164beb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "27178d0f29e5403574aca6d7fafcfc705b0bc64d417acea3a79cd9b2fd164beb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27178d0f29e5403574aca6d7fafcfc705b0bc64d417acea3a79cd9b2fd164beb", kill_on_drop: false }`
[INFO] [stdout] 27178d0f29e5403574aca6d7fafcfc705b0bc64d417acea3a79cd9b2fd164beb
[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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "check" "--frozen" "--all" "--all-targets" "--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] 3ff23e0dc4b82c3376b5fceb124ec1569275691d7ea0cfaaf7574e947287ba83
[INFO] running `Command { std: "docker" "start" "-a" "3ff23e0dc4b82c3376b5fceb124ec1569275691d7ea0cfaaf7574e947287ba83", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]     Checking unicode-xid v0.2.1
[INFO] [stderr]     Checking quote v1.0.9
[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" "3ff23e0dc4b82c3376b5fceb124ec1569275691d7ea0cfaaf7574e947287ba83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ff23e0dc4b82c3376b5fceb124ec1569275691d7ea0cfaaf7574e947287ba83", kill_on_drop: false }`
[INFO] [stdout] 3ff23e0dc4b82c3376b5fceb124ec1569275691d7ea0cfaaf7574e947287ba83