[INFO] fetching crate proc-macro-rules-macros 0.2.0...
[INFO] testing proc-macro-rules-macros-0.2.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate proc-macro-rules-macros 0.2.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate proc-macro-rules-macros 0.2.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate proc-macro-rules-macros 0.2.0
[INFO] finished tweaking crates.io crate proc-macro-rules-macros 0.2.0
[INFO] tweaked toml for crates.io crate proc-macro-rules-macros 0.2.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7fda83a708e7911758b0d94713dd457298e1daf6dfb68bac9e2614e3fb06d050
[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" "7fda83a708e7911758b0d94713dd457298e1daf6dfb68bac9e2614e3fb06d050", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7fda83a708e7911758b0d94713dd457298e1daf6dfb68bac9e2614e3fb06d050", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fda83a708e7911758b0d94713dd457298e1daf6dfb68bac9e2614e3fb06d050", kill_on_drop: false }`
[INFO] [stdout] 7fda83a708e7911758b0d94713dd457298e1daf6dfb68bac9e2614e3fb06d050
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3eb5a3d5d59d756d5d69f59e57f251568db0a51f4f3ed1602f135725c05b3fbe
[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" "3eb5a3d5d59d756d5d69f59e57f251568db0a51f4f3ed1602f135725c05b3fbe", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro-rules-macros v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.08s
[INFO] running `Command { std: "docker" "inspect" "3eb5a3d5d59d756d5d69f59e57f251568db0a51f4f3ed1602f135725c05b3fbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3eb5a3d5d59d756d5d69f59e57f251568db0a51f4f3ed1602f135725c05b3fbe", kill_on_drop: false }`
[INFO] [stdout] 3eb5a3d5d59d756d5d69f59e57f251568db0a51f4f3ed1602f135725c05b3fbe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c2e41514213a3d3bea35fb2f585f12313fdd969961deb6b1f60bd5da977bc5f8
[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" "c2e41514213a3d3bea35fb2f585f12313fdd969961deb6b1f60bd5da977bc5f8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro-rules-macros v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0061]: this function takes 3 arguments but 2 arguments were supplied
[INFO] [stdout]    --> src/lib.rs:102:17
[INFO] [stdout]     |
[INFO] [stdout] 102 |                   Fragment::Repeat(SubRule {
[INFO] [stdout]     |  _________________^^^^^^^^^^^^^^^^_-
[INFO] [stdout]     | |                 |
[INFO] [stdout]     | |                 expected 3 arguments
[INFO] [stdout] 103 | |                     matchers: vec![Fragment::Var(Ident::new("foo", Span::call_site()), Type::Expr)],
[INFO] [stdout] 104 | |                 }, RepeatKind::OneOrMore),
[INFO] [stdout]     | |                 -  --------------------- supplied 2 arguments
[INFO] [stdout]     | |_________________|
[INFO] [stdout]     | 
[INFO] [stdout]     |
[INFO] [stdout] note: tuple variant defined here
[INFO] [stdout]    --> src/ast.rs:32:5
[INFO] [stdout]     |
[INFO] [stdout] 32  |     Repeat(SubRule, RepeatKind, Option<Punct>),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0061`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro-rules-macros`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "c2e41514213a3d3bea35fb2f585f12313fdd969961deb6b1f60bd5da977bc5f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2e41514213a3d3bea35fb2f585f12313fdd969961deb6b1f60bd5da977bc5f8", kill_on_drop: false }`
[INFO] [stdout] c2e41514213a3d3bea35fb2f585f12313fdd969961deb6b1f60bd5da977bc5f8