[INFO] updating cached repository https://github.com/andreytyu/unnamed-bird
[INFO] running `Command { std: "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", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 32f5fa0f15f4cce6c94c447809bd19f15eb6a26f
[INFO] checking andreytyu/unnamed-bird against try#c8bdaa84ec1b37f18f30375e196a65b7602f3790 for pr-73345
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandreytyu%2Funnamed-bird" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/andreytyu/unnamed-bird on toolchain c8bdaa84ec1b37f18f30375e196a65b7602f3790
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/andreytyu/unnamed-bird
[INFO] finished tweaking git repo https://github.com/andreytyu/unnamed-bird
[INFO] tweaked toml for git repo https://github.com/andreytyu/unnamed-bird written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/andreytyu/unnamed-bird already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 80f3bf82ff6919a9962b5261f48a3f26e7377d41245f59de8c152dba105d03f1
[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" "80f3bf82ff6919a9962b5261f48a3f26e7377d41245f59de8c152dba105d03f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "80f3bf82ff6919a9962b5261f48a3f26e7377d41245f59de8c152dba105d03f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80f3bf82ff6919a9962b5261f48a3f26e7377d41245f59de8c152dba105d03f1", kill_on_drop: false }`
[INFO] [stdout] 80f3bf82ff6919a9962b5261f48a3f26e7377d41245f59de8c152dba105d03f1
[INFO] running `Command { std: "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@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "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] 07c9856b053b2ccaaa30b80b4a27a45b831726c5633e930b7a88f632e5485c90
[INFO] running `Command { std: "docker" "start" "-a" "07c9856b053b2ccaaa30b80b4a27a45b831726c5633e930b7a88f632e5485c90", kill_on_drop: false }`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]    Compiling protobuf v2.1.4
[INFO] [stderr]    Compiling proc-macro2 v0.4.21
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]    Compiling cc v1.0.25
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling serde v1.0.80
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking ucd-util v0.1.2
[INFO] [stderr]    Compiling procedural-masquerade v0.1.5
[INFO] [stderr]    Compiling regex v1.0.6
[INFO] [stderr]     Checking pub-iterator-type v0.1.1
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking fixedbitset v0.1.9
[INFO] [stderr]     Checking ordermap v0.3.5
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking humantime v1.1.1
[INFO] [stderr]     Checking regex-syntax v0.6.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking petgraph v0.4.13
[INFO] [stderr]     Checking par-map v0.1.4
[INFO] [stderr]     Checking aho-corasick v0.6.9
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]    Compiling miniz-sys v0.1.11
[INFO] [stderr]    Compiling syn v0.15.18
[INFO] [stderr]     Checking flate2 v0.2.20
[INFO] [stderr]    Compiling rental-impl v0.4.15
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]    Compiling protobuf-codegen v2.1.4
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]    Compiling protobuf-codegen-pure v2.1.4
[INFO] [stderr]     Checking rental v0.4.16
[INFO] [stdout] error: proc-macro derive panicked
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rental-0.4.16/src/lib.rs:87:12
[INFO] [stdout]     |
[INFO] [stdout] 87  |         #[derive(__rental_traits)]
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 110 |     define_rental_traits!(32);
[INFO] [stdout]     |     -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: message: expected prefix "#[allow(unused)]" not found in "# [allow(unused)] enum ProceduralMasqueradeDummyType\n{ Input = (0, stringify ! (32)) . 0, }"
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: proc-macro derive panicked
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rental-0.4.16/src/lib.rs:229:13
[INFO] [stdout]     |
[INFO] [stdout] 229 |               #[derive(__rental_structs_and_impls)]
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 257 | / rental! {
[INFO] [stdout] 258 | |     /// Example instantiations that demonstrate the API provided by the types this crate generates.
[INFO] [stdout] 259 | |     pub mod examples {
[INFO] [stdout] 260 | |         /// A simple example that can store an owner and a shared reference in the same struct.
[INFO] [stdout] ...   |
[INFO] [stdout] 329 | |     }
[INFO] [stdout] 330 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: message: expected prefix "#[allow(unused)]" not found in "# [allow(unused)] enum ProceduralMasqueradeDummyType\n{\n    Input =\n    (0, stringify !\n     (#\n      [doc =\n       r\" A simple example that can store an owner and a shared reference in the same struct.\"]\n      # [doc = r\"\"] # [doc = r\" ```rust\"] # [doc = r\" # extern crate rental;\"]\n      # [doc = r\" # use rental::examples::RentRef;\"] #\n      [doc = r\" # fn main() {\"] #\n      [doc = r\" let r = RentRef::new(Box::new(5), |i| &*i);\"] #\n      [doc = r\" assert_eq!(*r, r.rent(|iref| **iref));\"] # [doc = r\" # }\"] #\n      [doc = r\" ```\"] # [rental(deref_suffix)] pub struct RentRef < T :\n      \'static, U : \'static > { head : Box < T >, suffix : & \'head U, } #\n      [doc =\n       r\" A simple example that can store an owner and a mutable reference in the same struct.\"]\n      # [doc = r\"\"] # [doc = r\" ```rust\"] # [doc = r\" # extern crate rental;\"]\n      # [doc = r\" # use rental::examples::RentMut;\"] #\n      [doc = r\" # fn main() {\"] #\n      [doc = r\" let mut r = RentMut::new(Box::new(5), |i| &mut *i);\"] #\n      [doc = r\" *r = 12;\"] #\n      [doc = r\" assert_eq!(12, r.rent(|iref| **iref));\"] # [doc = r\" # }\"] #\n      [doc = r\" ```\"] # [rental_mut(deref_mut_suffix)] pub struct RentMut < T\n      : \'static, U : \'static > { head : Box < T >, suffix : & \'head mut U, } #\n      [doc = r\" An example that borrows off of another rental struct.\"] #\n      [doc = r\"\"] # [doc = r\" ```rust\"] # [doc = r\" # extern crate rental;\"] #\n      [doc = r\" # use rental::examples::{RentRef, RentRefMap};\"] #\n      [doc = r\" # fn main() {\"] #\n      [doc = r\" let r = RentRef::new(Box::new(5), |i| &*i);\"] #\n      [doc = r\" let rm = RentRefMap::new(Box::new(r), |r| &**r.suffix);\"] #\n      [doc = r\" assert_eq!(*rm, rm.rent(|iref| **iref));\"] # [doc = r\" # }\"] #\n      [doc = r\" ```\"] # [rental(deref_suffix)] pub struct RentRefMap < T :\n      \'static, U : \'static, V : \'static >\n      {\n          # [subrental(arity = 2)] head : Box < RentRef < T, U >>, suffix : &\n          \'head_1 V,\n      } #\n      [doc =\n       r\" An example that borrows mutably off of another rental struct.\"] #\n      [doc = r\"\"] # [doc = r\" ```rust\"] # [doc = r\" # extern crate rental;\"] #\n      [doc = r\" # use rental::examples::{RentMut, RentMutMap};\"] #\n      [doc = r\" # fn main() {\"] #\n      [doc = r\" let mut r = RentMut::new(Box::new(5), |i| &mut *i);\"] #\n      [doc =\n       r\" let mut rm = RentMutMap::new(Box::new(r), |r| &mut **r.suffix);\"] #\n      [doc = r\" *rm = 12;\"] #\n      [doc = r\" assert_eq!(12, rm.rent(|iref| **iref));\"] # [doc = r\" # }\"] #\n      [doc = r\" ```\"] # [rental_mut(deref_mut_suffix)] pub struct RentMutMap <\n      T : \'static, U : \'static, V : \'static >\n      {\n          # [subrental(arity = 2)] head : Box < RentMut < T, U >>, suffix : &\n          \'head_1 mut V,\n      })) . 0\n}"
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rental`.
[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] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "07c9856b053b2ccaaa30b80b4a27a45b831726c5633e930b7a88f632e5485c90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07c9856b053b2ccaaa30b80b4a27a45b831726c5633e930b7a88f632e5485c90", kill_on_drop: false }`
[INFO] [stdout] 07c9856b053b2ccaaa30b80b4a27a45b831726c5633e930b7a88f632e5485c90