[INFO] crate with_tempdir 0.1.0 is already in cache
[INFO] testing with_tempdir-0.1.0 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate with_tempdir 0.1.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate with_tempdir 0.1.0 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate with_tempdir 0.1.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate with_tempdir 0.1.0
[INFO] tweaked toml for crates.io crate with_tempdir 0.1.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stdout] 9e046fd864fc58628fa4fcef7233637bbf72f692ffe12aaa2e7fb706ca32f7d4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "9e046fd864fc58628fa4fcef7233637bbf72f692ffe12aaa2e7fb706ca32f7d4"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling with_tempdir v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0432]: unresolved import `syn::ItemFn`
[INFO] [stderr]   --> src/lib.rs:22:45
[INFO] [stderr]    |
[INFO] [stderr] 22 | use syn::{parse_macro_input, AttributeArgs, ItemFn, Lit, Meta, NestedMeta};
[INFO] [stderr]    |                                             ^^^^^^ no `ItemFn` in the root
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: could not find `FnArg` in `syn`
[INFO] [stderr]    --> src/lib.rs:113:22
[INFO] [stderr]     |
[INFO] [stderr] 113 |                 syn::FnArg::Captured(syn::ArgCaptured { ty, .. }) => check_type(ty),
[INFO] [stderr]     |                      ^^^^^ could not find `FnArg` in `syn`
[INFO] [stderr] 
[INFO] [stderr] error[E0422]: cannot find struct, variant or union type `ArgCaptured` in crate `syn`
[INFO] [stderr]    --> src/lib.rs:113:43
[INFO] [stderr]     |
[INFO] [stderr] 113 |                 syn::FnArg::Captured(syn::ArgCaptured { ty, .. }) => check_type(ty),
[INFO] [stderr]     |                                           ^^^^^^^^^^^ not found in `syn`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0422, E0432, E0433.
[INFO] [stderr] For more information about an error, try `rustc --explain E0422`.
[INFO] [stderr] error: could not compile `with_tempdir`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "9e046fd864fc58628fa4fcef7233637bbf72f692ffe12aaa2e7fb706ca32f7d4"`
[INFO] running `"docker" "rm" "-f" "9e046fd864fc58628fa4fcef7233637bbf72f692ffe12aaa2e7fb706ca32f7d4"`
[INFO] [stdout] 9e046fd864fc58628fa4fcef7233637bbf72f692ffe12aaa2e7fb706ca32f7d4