[INFO] cloning repository https://github.com/cubehub/doppler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cubehub/doppler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcubehub%2Fdoppler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcubehub%2Fdoppler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5f13df14c2cf81931a6502947508e4339c8b8e89
[INFO] documenting cubehub/doppler against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcubehub%2Fdoppler" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cubehub/doppler on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cubehub/doppler
[INFO] finished tweaking git repo https://github.com/cubehub/doppler
[INFO] tweaked toml for git repo https://github.com/cubehub/doppler written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/cubehub/doppler already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/marjakm/fern-rs.git`
[INFO] [stderr]     Updating git repository `https://github.com/cubehub/rust-gpredict.git`
[INFO] [stderr]     Updating git repository `https://github.com/cubehub/rust-coordinates.git`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-complex v0.1.35
[INFO] [stderr]   Downloaded num-bigint v0.1.35
[INFO] [stderr]   Downloaded clap v2.19.0
[INFO] [stderr]   Downloaded num-rational v0.1.35
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a6879e10e9981996ac24dba05fa1f7bb0431c63df32402cb2572f9fc4c4fd609
[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" "a6879e10e9981996ac24dba05fa1f7bb0431c63df32402cb2572f9fc4c4fd609", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a6879e10e9981996ac24dba05fa1f7bb0431c63df32402cb2572f9fc4c4fd609", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6879e10e9981996ac24dba05fa1f7bb0431c63df32402cb2572f9fc4c4fd609", kill_on_drop: false }`
[INFO] [stdout] a6879e10e9981996ac24dba05fa1f7bb0431c63df32402cb2572f9fc4c4fd609
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1d144f61ae0bed0be550fbae5f77788a460332656a8cad6c6d146fa960164ddd
[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" "1d144f61ae0bed0be550fbae5f77788a460332656a8cad6c6d146fa960164ddd", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking unicode-width v0.1.3
[INFO] [stderr]     Checking unicode-segmentation v0.1.2
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking term_size v0.2.1
[INFO] [stderr]     Checking num-complex v0.1.35
[INFO] [stderr]     Checking coordinates v0.1.0 (https://github.com/cubehub/rust-coordinates.git#e8548c16)
[INFO] [stderr]    Compiling doppler v1.1.10 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking fern v0.4.0 (https://github.com/marjakm/fern-rs.git#9b1b821a)
[INFO] [stderr]     Checking clap v2.19.0
[INFO] [stderr]     Checking gpredict v0.2.6 (https://github.com/cubehub/rust-gpredict.git#b223e69b)
[INFO] [stdout] error: missing fragment specifier
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/clap-2.19.0/src/macros.rs:510:41
[INFO] [stdout]     |
[INFO] [stdout] 510 |     (@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] [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] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "1d144f61ae0bed0be550fbae5f77788a460332656a8cad6c6d146fa960164ddd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d144f61ae0bed0be550fbae5f77788a460332656a8cad6c6d146fa960164ddd", kill_on_drop: false }`
[INFO] [stdout] 1d144f61ae0bed0be550fbae5f77788a460332656a8cad6c6d146fa960164ddd