[INFO] crate beserial_derive 0.1.0 is already in cache
[INFO] checking beserial_derive-0.1.0 against beta-2019-10-27 for pr-65897
[INFO] extracting crate beserial_derive 0.1.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate beserial_derive 0.1.0 on toolchain beta-2019-10-27
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate beserial_derive 0.1.0
[INFO] finished tweaking crates.io crate beserial_derive 0.1.0
[INFO] tweaked toml for crates.io crate beserial_derive 0.1.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=allow" "-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-2019-10-27" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2b1bfd7a018195cba2633a94655aea0ff67d152b57d3633556762391c75b28c5
[INFO] running `"docker" "start" "-a" "2b1bfd7a018195cba2633a94655aea0ff67d152b57d3633556762391c75b28c5"`
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling syn v1.0.7
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-bigint v0.2.3
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]     Checking quote v0.6.13
[INFO] [stderr]     Checking backtrace v0.3.40
[INFO] [stderr]    Compiling synstructure v0.12.1
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]    Compiling beserial v0.1.0
[INFO] [stderr]     Checking beserial_derive v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0277]: `syn::attr::Meta` doesn't implement `std::fmt::Debug`
[INFO] [stderr]   --> src/lib.rs:55:81
[INFO] [stderr]    |
[INFO] [stderr] 55 | ...                   _ => panic!("unknown attribute for beserial: {:?}", item)
[INFO] [stderr]    |                                                                           ^^^^ `syn::attr::Meta` cannot be formatted using `{:?}` because it doesn't implement `std::fmt::Debug`
[INFO] [stderr]    |
[INFO] [stderr]    = help: the trait `std::fmt::Debug` is not implemented for `syn::attr::Meta`
[INFO] [stderr]    = note: required because of the requirements on the impl of `std::fmt::Debug` for `&syn::attr::Meta`
[INFO] [stderr]    = note: required by `std::fmt::Debug::fmt`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: `syn::attr::Meta` doesn't implement `std::fmt::Debug`
[INFO] [stderr]   --> src/lib.rs:55:81
[INFO] [stderr]    |
[INFO] [stderr] 55 | ...                   _ => panic!("unknown attribute for beserial: {:?}", item)
[INFO] [stderr]    |                                                                           ^^^^ `syn::attr::Meta` cannot be formatted using `{:?}` because it doesn't implement `std::fmt::Debug`
[INFO] [stderr]    |
[INFO] [stderr]    = help: the trait `std::fmt::Debug` is not implemented for `syn::attr::Meta`
[INFO] [stderr]    = note: required because of the requirements on the impl of `std::fmt::Debug` for `&syn::attr::Meta`
[INFO] [stderr]    = note: required by `std::fmt::Debug::fmt`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `beserial_derive`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0277]: `syn::attr::Meta` doesn't implement `std::fmt::Debug`
[INFO] [stderr]   --> src/lib.rs:55:81
[INFO] [stderr]    |
[INFO] [stderr] 55 | ...                   _ => panic!("unknown attribute for beserial: {:?}", item)
[INFO] [stderr]    |                                                                           ^^^^ `syn::attr::Meta` cannot be formatted using `{:?}` because it doesn't implement `std::fmt::Debug`
[INFO] [stderr]    |
[INFO] [stderr]    = help: the trait `std::fmt::Debug` is not implemented for `syn::attr::Meta`
[INFO] [stderr]    = note: required because of the requirements on the impl of `std::fmt::Debug` for `&syn::attr::Meta`
[INFO] [stderr]    = note: required by `std::fmt::Debug::fmt`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `beserial_derive`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `beserial_derive`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "2b1bfd7a018195cba2633a94655aea0ff67d152b57d3633556762391c75b28c5"`
[INFO] running `"docker" "rm" "-f" "2b1bfd7a018195cba2633a94655aea0ff67d152b57d3633556762391c75b28c5"`
[INFO] [stdout] 2b1bfd7a018195cba2633a94655aea0ff67d152b57d3633556762391c75b28c5