[INFO] updating cached repository https://github.com/milyin/sexpr
[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] 9768367f60c3b3803dd1a6df31649a5e6992a111
[INFO] testing milyin/sexpr against beta-2020-07-24 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmilyin%2Fsexpr" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/milyin/sexpr on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/milyin/sexpr
[INFO] finished tweaking git repo https://github.com/milyin/sexpr
[INFO] tweaked toml for git repo https://github.com/milyin/sexpr written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/milyin/sexpr already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] df29218c2281fab278b368500f52e389051f4ee61ac9f9983b6505bef487c2b1
[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" "df29218c2281fab278b368500f52e389051f4ee61ac9f9983b6505bef487c2b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df29218c2281fab278b368500f52e389051f4ee61ac9f9983b6505bef487c2b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df29218c2281fab278b368500f52e389051f4ee61ac9f9983b6505bef487c2b1", kill_on_drop: false }`
[INFO] [stdout] df29218c2281fab278b368500f52e389051f4ee61ac9f9983b6505bef487c2b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c96a7d17130b1a89f937d896616938cc80eaf944baacb32aa1f54b3cd0ca02e8
[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" "c96a7d17130b1a89f937d896616938cc80eaf944baacb32aa1f54b3cd0ca02e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.32
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling nom v3.2.0
[INFO] [stderr]    Compiling sexpr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected one of `,`, `@`, `]`, or `|`, found `..`
[INFO] [stdout]   --> src/main.rs:59:38
[INFO] [stdout]    |
[INFO] [stdout] 59 |                 &[ref sexpr, ref rest..] => rest.iter().fold(sexpr.interpret(), |acc, sexpr| acc - sexpr.interpret())
[INFO] [stdout]    |                                      ^^ expected one of `,`, `@`, `]`, or `|`
[INFO] [stdout]    |
[INFO] [stdout] help: if you meant to bind the contents of the rest of the array pattern into `rest`, use `@`
[INFO] [stdout]    |
[INFO] [stdout] 59 |                 &[ref sexpr, ref rest @ ..] => rest.iter().fold(sexpr.interpret(), |acc, sexpr| acc - sexpr.interpret())
[INFO] [stdout]    |                                       ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sexpr`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "c96a7d17130b1a89f937d896616938cc80eaf944baacb32aa1f54b3cd0ca02e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c96a7d17130b1a89f937d896616938cc80eaf944baacb32aa1f54b3cd0ca02e8", kill_on_drop: false }`
[INFO] [stdout] c96a7d17130b1a89f937d896616938cc80eaf944baacb32aa1f54b3cd0ca02e8