[INFO] fetching crate monad_macros 0.0.1...
[INFO] testing monad_macros-0.0.1 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate monad_macros 0.0.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate monad_macros 0.0.1 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 monad_macros 0.0.1
[INFO] finished tweaking crates.io crate monad_macros 0.0.1
[INFO] tweaked toml for crates.io crate monad_macros 0.0.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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-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=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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 508e4f152ca023ca46f237a9c7756811da5831d3e00f65a9dcb99798f6441296
[INFO] running `"docker" "start" "-a" "508e4f152ca023ca46f237a9c7756811da5831d3e00f65a9dcb99798f6441296"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling monad_macros v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] error: `$p:pat` is followed by `:`, which is not allowed for `pat` fragments
[INFO] [stderr]   --> src/lib.rs:16:17
[INFO] [stderr]    |
[INFO] [stderr] 16 |         $p: pat : $ty: ty <- $e: expr ; $( $t: tt )*
[INFO] [stderr]    |                 ^ not allowed after `pat` fragments
[INFO] [stderr]    |
[INFO] [stderr]    = note: allowed there are: `=>`, `,`, `=`, `|`, `if` or `in`
[INFO] [stderr] 
[INFO] [stderr] error: `$ty:ty` is followed by `<-`, which is not allowed for `ty` fragments
[INFO] [stderr]   --> src/lib.rs:16:27
[INFO] [stderr]    |
[INFO] [stderr] 16 |         $p: pat : $ty: ty <- $e: expr ; $( $t: tt )*
[INFO] [stderr]    |                           ^^ not allowed after `ty` fragments
[INFO] [stderr]    |
[INFO] [stderr]    = note: allowed there are: `{`, `[`, `=>`, `,`, `>`, `=`, `:`, `;`, `|`, `as` or `where`
[INFO] [stderr] 
[INFO] [stderr] error: `$p:pat` is followed by `<-`, which is not allowed for `pat` fragments
[INFO] [stderr]   --> src/lib.rs:21:17
[INFO] [stderr]    |
[INFO] [stderr] 21 |         $p: pat <- $e: expr ; $( $t: tt )*
[INFO] [stderr]    |                 ^^ not allowed after `pat` fragments
[INFO] [stderr]    |
[INFO] [stderr]    = note: allowed there are: `=>`, `,`, `=`, `|`, `if` or `in`
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(macro_rules)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `monad_macros`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "508e4f152ca023ca46f237a9c7756811da5831d3e00f65a9dcb99798f6441296"`
[INFO] running `"docker" "rm" "-f" "508e4f152ca023ca46f237a9c7756811da5831d3e00f65a9dcb99798f6441296"`
[INFO] [stdout] 508e4f152ca023ca46f237a9c7756811da5831d3e00f65a9dcb99798f6441296