[INFO] fetching crate gluon_c-api 0.12.0...
[INFO] checking gluon_c-api-0.12.0 against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] extracting crate gluon_c-api 0.12.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate gluon_c-api 0.12.0 on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate gluon_c-api 0.12.0
[INFO] finished tweaking crates.io crate gluon_c-api 0.12.0
[INFO] tweaked toml for crates.io crate gluon_c-api 0.12.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded little-skeptic v0.15.2
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=forbid" "-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" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "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] 852ba4d4697953b57ffdd6ad0b9cbbe3358636cde9301b26ad2e82411e779469
[INFO] running `"docker" "start" "-a" "852ba4d4697953b57ffdd6ad0b9cbbe3358636cde9301b26ad2e82411e779469"`
[INFO] [stderr]    Compiling gluon_vm v0.12.0
[INFO] [stderr]    Compiling ena v0.13.1
[INFO] [stderr]    Compiling gluon_codegen v0.12.0
[INFO] [stderr]     Checking codespan v0.3.0
[INFO] [stderr]    Compiling docopt v1.1.0
[INFO] [stderr]    Compiling string_cache v0.7.4
[INFO] [stderr] error[E0277]: `syn::NestedMeta` doesn't implement `std::fmt::Debug`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/gluon_codegen-0.12.0/src/attr.rs:72:79
[INFO] [stderr]    |
[INFO] [stderr] 72 |                     _ => panic!("unexpected gluon container attribute: {:?}", meta_item),
[INFO] [stderr]    |                                                                               ^^^^^^^^^ `syn::NestedMeta` 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::NestedMeta`
[INFO] [stderr]    = note: required by `std::fmt::Debug::fmt`
[INFO] [stderr] 
[INFO] [stderr]     Checking codespan-reporting v0.3.0
[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 `gluon_codegen`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "852ba4d4697953b57ffdd6ad0b9cbbe3358636cde9301b26ad2e82411e779469"`
[INFO] running `"docker" "rm" "-f" "852ba4d4697953b57ffdd6ad0b9cbbe3358636cde9301b26ad2e82411e779469"`
[INFO] [stdout] 852ba4d4697953b57ffdd6ad0b9cbbe3358636cde9301b26ad2e82411e779469