[INFO] cloning repository https://github.com/sebglazebrook/infinite-pipe
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sebglazebrook/infinite-pipe" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsebglazebrook%2Finfinite-pipe", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsebglazebrook%2Finfinite-pipe'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8fd5bdaa95d2131fe5c297e6e2f6c1b3a48e8149
[INFO] documenting sebglazebrook/infinite-pipe against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsebglazebrook%2Finfinite-pipe" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sebglazebrook/infinite-pipe on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sebglazebrook/infinite-pipe
[INFO] finished tweaking git repo https://github.com/sebglazebrook/infinite-pipe
[INFO] tweaked toml for git repo https://github.com/sebglazebrook/infinite-pipe written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/sebglazebrook/infinite-pipe already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 569106a14ec71aeceb9e59499c9243ed94353de8c8d26af5eb9b4215dc67c317
[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" "569106a14ec71aeceb9e59499c9243ed94353de8c8d26af5eb9b4215dc67c317", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "569106a14ec71aeceb9e59499c9243ed94353de8c8d26af5eb9b4215dc67c317", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "569106a14ec71aeceb9e59499c9243ed94353de8c8d26af5eb9b4215dc67c317", kill_on_drop: false }`
[INFO] [stdout] 569106a14ec71aeceb9e59499c9243ed94353de8c8d26af5eb9b4215dc67c317
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e0148b8716a67a8600b7349495c5729974dad304542349fc259df044cc769bb
[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" "9e0148b8716a67a8600b7349495c5729974dad304542349fc259df044cc769bb", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.21
[INFO] [stderr]    Compiling mockers_codegen v0.5.8
[INFO] [stderr]    Compiling readline v0.2.0 (https://github.com/shaleh/rust-readline.git#4223e676)
[INFO] [stderr]    Compiling itertools v0.4.19
[INFO] [stderr]     Checking nix v0.5.1
[INFO] [stderr]     Checking errno v0.1.8
[INFO] [stderr]    Compiling time v0.1.36
[INFO] [stderr]    Compiling vergen v0.1.1
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mockers_codegen-0.5.8/src/lib.rs:1:49
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![cfg_attr(not(feature="with-syntex"), feature(quote, rustc_private))]
[INFO] [stdout]   |                                                 ^^^^^ feature has been removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `syntax`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mockers_codegen-0.5.8/src/lib.rs:7:36
[INFO] [stdout]   |
[INFO] [stdout] 7 | #[cfg(not(feature="with-syntex"))] extern crate syntax;
[INFO] [stdout]   |                                    ^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0463, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mockers_codegen`.
[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" "9e0148b8716a67a8600b7349495c5729974dad304542349fc259df044cc769bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e0148b8716a67a8600b7349495c5729974dad304542349fc259df044cc769bb", kill_on_drop: false }`
[INFO] [stdout] 9e0148b8716a67a8600b7349495c5729974dad304542349fc259df044cc769bb