[INFO] fetching crate peg-syntax-ext 0.5.7...
[INFO] documenting peg-syntax-ext-0.5.7 against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] extracting crate peg-syntax-ext 0.5.7 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate peg-syntax-ext 0.5.7 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 crates.io crate peg-syntax-ext 0.5.7
[INFO] finished tweaking crates.io crate peg-syntax-ext 0.5.7
[INFO] tweaked toml for crates.io crate peg-syntax-ext 0.5.7 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] f208db8f993ab54e22f43c94eb150dcacf6296d21940041f92d50c9d06af1867
[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" "f208db8f993ab54e22f43c94eb150dcacf6296d21940041f92d50c9d06af1867", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f208db8f993ab54e22f43c94eb150dcacf6296d21940041f92d50c9d06af1867", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f208db8f993ab54e22f43c94eb150dcacf6296d21940041f92d50c9d06af1867", kill_on_drop: false }`
[INFO] [stdout] f208db8f993ab54e22f43c94eb150dcacf6296d21940041f92d50c9d06af1867
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 18f8fc33d9229d7fbac8a0b1d5fc6df745b1d200cf3bb59288f3f33f399cc09b
[INFO] running `Command { std: "docker" "start" "-a" "18f8fc33d9229d7fbac8a0b1d5fc6df745b1d200cf3bb59288f3f33f399cc09b", kill_on_drop: false }`
[INFO] [stderr]     Checking quote v0.3.15
[INFO] [stderr]     Checking peg v0.5.7
[INFO] [stderr]  Documenting peg-syntax-ext v0.5.7 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0463]: can't find crate for `rustc_plugin`
[INFO] [stdout]  --> lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate rustc_plugin;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `peg-syntax-ext`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type dylib --crate-name peg_syntax_ext lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern peg=/opt/rustwide/target/debug/deps/libpeg-e8343f0bc721a4bc.rmeta --cap-lints=warn --crate-version 0.5.7` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "18f8fc33d9229d7fbac8a0b1d5fc6df745b1d200cf3bb59288f3f33f399cc09b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18f8fc33d9229d7fbac8a0b1d5fc6df745b1d200cf3bb59288f3f33f399cc09b", kill_on_drop: false }`
[INFO] [stdout] 18f8fc33d9229d7fbac8a0b1d5fc6df745b1d200cf3bb59288f3f33f399cc09b
