[INFO] fetching crate cargo-spellcheck 0.4.3...
[INFO] documenting cargo-spellcheck-0.4.3 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate cargo-spellcheck 0.4.3 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate cargo-spellcheck 0.4.3 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 crates.io crate cargo-spellcheck 0.4.3
[INFO] finished tweaking crates.io crate cargo-spellcheck 0.4.3
[INFO] tweaked toml for crates.io crate cargo-spellcheck 0.4.3 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate cargo-spellcheck 0.4.3 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]  Downloading crates ...
[INFO] [stderr]   Downloaded cargo_toml v0.8.1
[INFO] [stderr]   Downloaded fancy-regex v0.3.5
[INFO] [stderr]   Downloaded enumflags2 v0.6.4
[INFO] [stderr]   Downloaded enumflags2_derive v0.6.4
[INFO] [stderr]   Downloaded iso_country v0.1.4
[INFO] [stderr]   Downloaded isolang v1.0.0
[INFO] [stderr]   Downloaded languagetool v0.1.2
[INFO] [stderr]   Downloaded hunspell-rs v0.3.0
[INFO] [stderr]   Downloaded hunspell-sys v0.2.1
[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" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9177cc85bd9c3e800ef3a40e685ad3613311fe3ffd6b2b707c94bf19b1078a04
[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" "9177cc85bd9c3e800ef3a40e685ad3613311fe3ffd6b2b707c94bf19b1078a04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9177cc85bd9c3e800ef3a40e685ad3613311fe3ffd6b2b707c94bf19b1078a04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9177cc85bd9c3e800ef3a40e685ad3613311fe3ffd6b2b707c94bf19b1078a04", kill_on_drop: false }`
[INFO] [stdout] 9177cc85bd9c3e800ef3a40e685ad3613311fe3ffd6b2b707c94bf19b1078a04
[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" "+beta-2020-08-29" "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] bb30dfcaa159cf657e0ba8dd3695552b320d199a13fa20a82771fb824932c0d4
[INFO] running `Command { std: "docker" "start" "-a" "bb30dfcaa159cf657e0ba8dd3695552b320d199a13fa20a82771fb824932c0d4", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling bindgen v0.54.1
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling pulldown-cmark v0.7.2
[INFO] [stderr]     Checking either v1.6.0
[INFO] [stderr]     Checking strsim v0.9.3
[INFO] [stderr]     Checking iso_country v0.1.4
[INFO] [stderr]    Compiling clang-sys v0.29.3
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]    Compiling indexmap v1.5.1
[INFO] [stderr]     Checking proc-macro2 v1.0.19
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]     Checking mio v0.7.0
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]     Checking directories v2.0.2
[INFO] [stderr]     Checking fancy-regex v0.3.5
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking console v0.11.3
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]    Compiling isolang v1.0.0
[INFO] [stderr]     Checking signal-hook v0.1.16
[INFO] [stderr]     Checking crossterm v0.17.7
[INFO] [stderr]     Checking quote v1.0.7
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling enumflags2_derive v0.6.4
[INFO] [stderr]     Checking enumflags2 v0.6.4
[INFO] [stderr]    Compiling hunspell-sys v0.2.1
[INFO] [stderr]     Checking serde v1.0.115
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking docopt v1.1.0
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking cargo_toml v0.8.1
[INFO] [stderr]     Checking hunspell-rs v0.3.0
[INFO] [stderr]  Documenting cargo-spellcheck v0.4.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 06s
[INFO] running `Command { std: "docker" "inspect" "bb30dfcaa159cf657e0ba8dd3695552b320d199a13fa20a82771fb824932c0d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb30dfcaa159cf657e0ba8dd3695552b320d199a13fa20a82771fb824932c0d4", kill_on_drop: false }`
[INFO] [stdout] bb30dfcaa159cf657e0ba8dd3695552b320d199a13fa20a82771fb824932c0d4