[INFO] cloning repository https://github.com/JasonKleban/RustyEuler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JasonKleban/RustyEuler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJasonKleban%2FRustyEuler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJasonKleban%2FRustyEuler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bf23e7a08037b522427d9d17be80fc5dfe8820ef
[INFO] documenting JasonKleban/RustyEuler against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJasonKleban%2FRustyEuler" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JasonKleban/RustyEuler on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JasonKleban/RustyEuler
[INFO] finished tweaking git repo https://github.com/JasonKleban/RustyEuler
[INFO] tweaked toml for git repo https://github.com/JasonKleban/RustyEuler written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/JasonKleban/RustyEuler already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded either v1.0.3
[INFO] [stderr]   Downloaded itertools v0.5.9
[INFO] [stderr]   Downloaded clap v2.20.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d45d6aae65af7bc231be9631428345621281e35b26a45fa8e48c7caabf235d4b
[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" "d45d6aae65af7bc231be9631428345621281e35b26a45fa8e48c7caabf235d4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d45d6aae65af7bc231be9631428345621281e35b26a45fa8e48c7caabf235d4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d45d6aae65af7bc231be9631428345621281e35b26a45fa8e48c7caabf235d4b", kill_on_drop: false }`
[INFO] [stdout] d45d6aae65af7bc231be9631428345621281e35b26a45fa8e48c7caabf235d4b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "RUSTDOCFLAGS=--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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a520f756289aae979f5b1e50c2c83e50ae02ec6b2c9896a61a2342f03012af54
[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" "a520f756289aae979f5b1e50c2c83e50ae02ec6b2c9896a61a2342f03012af54", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.0.3
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking term_size v0.2.2
[INFO] [stderr]     Checking time v0.1.36
[INFO] [stderr]     Checking itertools v0.5.9
[INFO] [stderr]     Checking clap v2.20.4
[INFO] [stdout] error: missing fragment specifier
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/clap-2.20.4/src/macros.rs:628:41
[INFO] [stdout]     |
[INFO] [stdout] 628 |     (@arg ($arg:expr) $modes:tt !$ident $($tail:tt)*) => {
[INFO] [stdout]     |                                         ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking num-bigint v0.1.35
[INFO] [stderr]     Checking num-rational v0.1.35
[INFO] [stderr]     Checking num v0.1.36
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `clap`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "a520f756289aae979f5b1e50c2c83e50ae02ec6b2c9896a61a2342f03012af54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a520f756289aae979f5b1e50c2c83e50ae02ec6b2c9896a61a2342f03012af54", kill_on_drop: false }`
[INFO] [stdout] a520f756289aae979f5b1e50c2c83e50ae02ec6b2c9896a61a2342f03012af54