[INFO] updating cached repository https://github.com/gluon-lang/gluon
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 520096ded1e7512fe3120cb64c712f7ff8c6f8db
[INFO] checking gluon-lang/gluon against try#ba14a92a10441c4b839ce71e6ef5f7a48bbff18f for prs-64470-and-65389
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgluon-lang%2Fgluon" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gluon-lang/gluon on toolchain ba14a92a10441c4b839ce71e6ef5f7a48bbff18f
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba14a92a10441c4b839ce71e6ef5f7a48bbff18f" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/gluon-lang/gluon
[INFO] removed 1 missing examples
[INFO] removed 1 missing tests
[INFO] removed workspace from git repo https://github.com/gluon-lang/gluon
[INFO] removed path dependency gluon_base from git repo https://github.com/gluon-lang/gluon
[INFO] removed path dependency gluon_check from git repo https://github.com/gluon-lang/gluon
[INFO] removed path dependency gluon_codegen from git repo https://github.com/gluon-lang/gluon
[INFO] removed path dependency gluon_format from git repo https://github.com/gluon-lang/gluon
[INFO] removed path dependency gluon_parser from git repo https://github.com/gluon-lang/gluon
[INFO] removed path dependency gluon_vm from git repo https://github.com/gluon-lang/gluon
[INFO] removed path dependency gluon_codegen from git repo https://github.com/gluon-lang/gluon
[INFO] removed path dependency gluon_completion from git repo https://github.com/gluon-lang/gluon
[INFO] removed path dependency gluon_base from git repo https://github.com/gluon-lang/gluon
[INFO] finished tweaking git repo https://github.com/gluon-lang/gluon
[INFO] tweaked toml for git repo https://github.com/gluon-lang/gluon written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/gluon-lang/gluon already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba14a92a10441c4b839ce71e6ef5f7a48bbff18f" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /workspace/builds/worker-0/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba14a92a10441c4b839ce71e6ef5f7a48bbff18f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba14a92a10441c4b839ce71e6ef5f7a48bbff18f" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+ba14a92a10441c4b839ce71e6ef5f7a48bbff18f" "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] 26b8efed6634941f4cb66eef8eb9dd0eb896a06b4b9df6e1a1a512ac769c9ae7
[INFO] running `"docker" "start" "-a" "26b8efed6634941f4cb66eef8eb9dd0eb896a06b4b9df6e1a1a512ac769c9ae7"`
[INFO] [stderr]     Checking collect-mac v0.1.0
[INFO] [stderr]    Compiling typed-arena v1.6.1
[INFO] [stderr]    Compiling anymap v0.12.1
[INFO] [stderr]    Compiling gluon_vm v0.12.0
[INFO] [stderr]     Checking union-find v0.3.2
[INFO] [stderr]     Checking frunk_core v0.2.4
[INFO] [stderr]    Compiling pulldown-cmark v0.6.0
[INFO] [stderr]     Checking pretty v0.5.2
[INFO] [stderr]     Checking criterion-plot v0.4.0
[INFO] [stderr]    Compiling ordered-float v1.0.2
[INFO] [stderr]    Compiling salsa-macros v0.13.2
[INFO] [stderr]    Compiling derive-new v0.5.8
[INFO] [stderr]    Compiling serde_derive_state v0.4.9
[INFO] [stderr]     Checking tokio-retry v0.2.0
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]     Checking rand_os v0.2.2
[INFO] [stderr]     Checking rand_xoshiro v0.3.1
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling gluon_codegen v0.12.0
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]     Checking codespan v0.3.0
[INFO] [stderr]     Checking tinytemplate v1.0.2
[INFO] [stderr]     Checking tensile v0.5.0
[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] 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" "26b8efed6634941f4cb66eef8eb9dd0eb896a06b4b9df6e1a1a512ac769c9ae7"`
[INFO] running `"docker" "rm" "-f" "26b8efed6634941f4cb66eef8eb9dd0eb896a06b4b9df6e1a1a512ac769c9ae7"`
[INFO] [stdout] 26b8efed6634941f4cb66eef8eb9dd0eb896a06b4b9df6e1a1a512ac769c9ae7