[INFO] cloning repository https://github.com/hiratara/toy-linear-type-system
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hiratara/toy-linear-type-system" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhiratara%2Ftoy-linear-type-system", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhiratara%2Ftoy-linear-type-system'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fcdcd13ec7c3f7fb52315f42ec95f159c4f25439
[INFO] testing hiratara/toy-linear-type-system against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhiratara%2Ftoy-linear-type-system" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hiratara/toy-linear-type-system on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hiratara/toy-linear-type-system
[INFO] finished tweaking git repo https://github.com/hiratara/toy-linear-type-system
[INFO] tweaked toml for git repo https://github.com/hiratara/toy-linear-type-system written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/hiratara/toy-linear-type-system already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5214250e8e545c0435f5ecde58386be3c25dfcb53a164eb32b8fd9760e8a2ccf
[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" "5214250e8e545c0435f5ecde58386be3c25dfcb53a164eb32b8fd9760e8a2ccf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5214250e8e545c0435f5ecde58386be3c25dfcb53a164eb32b8fd9760e8a2ccf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5214250e8e545c0435f5ecde58386be3c25dfcb53a164eb32b8fd9760e8a2ccf", kill_on_drop: false }`
[INFO] [stdout] 5214250e8e545c0435f5ecde58386be3c25dfcb53a164eb32b8fd9760e8a2ccf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 85b2e240c81f1230395cbbe1f67cd5c16fcb28c633c55c36cf93fc38a4c0c80f
[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" "85b2e240c81f1230395cbbe1f67cd5c16fcb28c633c55c36cf93fc38a4c0c80f", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling either v1.5.2
[INFO] [stderr]    Compiling ascii v0.9.2
[INFO] [stderr]    Compiling combine v3.8.1
[INFO] [stderr]    Compiling toy-linear-type-system v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: reached the recursion limit while instantiating `<combine::combinator::Map<(combi...Parser>::parse_mode::<FirstMode>`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/combine-3.8.1/src/parser/choice.rs:298:1
[INFO] [stdout]     |
[INFO] [stdout] 298 | tuple_choice_parser!(A B C D E F G H I J K L M N O P Q R S T U V X Y Z);
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `parse_mode` defined here
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/combine-3.8.1/src/parser/mod.rs:323:5
[INFO] [stdout]     |
[INFO] [stdout] 323 | /     fn parse_mode<M>(
[INFO] [stdout] 324 | |         &mut self,
[INFO] [stdout] 325 | |         mode: M,
[INFO] [stdout] 326 | |         input: &mut Self::Input,
[INFO] [stdout] ...   |
[INFO] [stdout] 337 | |         }
[INFO] [stdout] 338 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     = note: the full type name has been written to '/opt/rustwide/target/debug/deps/toy_linear_type_system-c590a57c3ef2456b.long-type.txt'
[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 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `toy-linear-type-system`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "85b2e240c81f1230395cbbe1f67cd5c16fcb28c633c55c36cf93fc38a4c0c80f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85b2e240c81f1230395cbbe1f67cd5c16fcb28c633c55c36cf93fc38a4c0c80f", kill_on_drop: false }`
[INFO] [stdout] 85b2e240c81f1230395cbbe1f67cd5c16fcb28c633c55c36cf93fc38a4c0c80f