[INFO] fetching crate rust-pm 0.0.2...
[INFO] documenting rust-pm-0.0.2 against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] extracting crate rust-pm 0.0.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate rust-pm 0.0.2 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rust-pm 0.0.2
[INFO] finished tweaking crates.io crate rust-pm 0.0.2
[INFO] tweaked toml for crates.io crate rust-pm 0.0.2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aeac214095d2edd0f1e23225fc8db42d11d35e02553629a80659b71f873722a3
[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" "aeac214095d2edd0f1e23225fc8db42d11d35e02553629a80659b71f873722a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aeac214095d2edd0f1e23225fc8db42d11d35e02553629a80659b71f873722a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aeac214095d2edd0f1e23225fc8db42d11d35e02553629a80659b71f873722a3", kill_on_drop: false }`
[INFO] [stdout] aeac214095d2edd0f1e23225fc8db42d11d35e02553629a80659b71f873722a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4aa1e094965f229859dc7dccbbd05ea0ea2ddd8721116fc6667ea268c2fd7458
[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" "4aa1e094965f229859dc7dccbbd05ea0ea2ddd8721116fc6667ea268c2fd7458", kill_on_drop: false }`
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking iron v0.6.1
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking term v0.7.0
[INFO] [stderr]     Checking router v0.6.0
[INFO] [stderr]  Documenting rust-pm v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `toml::Parser`
[INFO] [stdout]  --> src/main.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | use toml::{Parser, Value};
[INFO] [stdout]   |            ^^^^^^ no `Parser` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(scoped)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `rust-pm`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name rust_pm src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern iron=/opt/rustwide/target/debug/deps/libiron-443fe8964d117540.rmeta --extern router=/opt/rustwide/target/debug/deps/librouter-a8ca6d2eaf7842fe.rmeta --extern rustc_serialize=/opt/rustwide/target/debug/deps/librustc_serialize-ee311ccec3574ca0.rmeta --extern term=/opt/rustwide/target/debug/deps/libterm-e2ce013897c77229.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-9252ccb80ede1acc.rmeta --cap-lints=warn --crate-version 0.0.2` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "4aa1e094965f229859dc7dccbbd05ea0ea2ddd8721116fc6667ea268c2fd7458", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4aa1e094965f229859dc7dccbbd05ea0ea2ddd8721116fc6667ea268c2fd7458", kill_on_drop: false }`
[INFO] [stdout] 4aa1e094965f229859dc7dccbbd05ea0ea2ddd8721116fc6667ea268c2fd7458
