[INFO] crate cargo-cov 0.0.5 is already in cache
[INFO] documenting cargo-cov-0.0.5 against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] extracting crate cargo-cov 0.0.5 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate cargo-cov 0.0.5 on toolchain 394e1b40d264aa6928811919c1124fa248e7d802
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cargo-cov 0.0.5
[INFO] finished tweaking crates.io crate cargo-cov 0.0.5
[INFO] tweaked toml for crates.io crate cargo-cov 0.0.5 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aea923c3607607e257df264324b5d77d8df4f361ce96d501c096365dc5220276
[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" "aea923c3607607e257df264324b5d77d8df4f361ce96d501c096365dc5220276", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aea923c3607607e257df264324b5d77d8df4f361ce96d501c096365dc5220276", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aea923c3607607e257df264324b5d77d8df4f361ce96d501c096365dc5220276", kill_on_drop: false }`
[INFO] [stdout] aea923c3607607e257df264324b5d77d8df4f361ce96d501c096365dc5220276
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "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] 1e833e21a03013583c8956624bb91f4ca5e48b952f1eccb258f482fa674262d8
[INFO] running `Command { std: "docker" "start" "-a" "1e833e21a03013583c8956624bb91f4ca5e48b952f1eccb258f482fa674262d8", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling serde_json v1.0.56
[INFO] [stderr]     Checking unic-char-range v0.7.0
[INFO] [stderr]     Checking unic-common v0.7.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking deunicode v0.4.3
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling cargo-cov v0.0.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking natord v1.0.9
[INFO] [stderr]     Checking fs_extra v1.1.0
[INFO] [stderr]     Checking open v1.4.0
[INFO] [stderr]    Compiling error-chain v0.12.2
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking petgraph v0.4.13
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking backtrace v0.3.49
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking unic-char-property v0.7.0
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking unic-ucd-version v0.7.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking slug v0.1.4
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking unic-ucd-segment v0.7.0
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking unic-segment v0.7.0
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking shawshank v0.2.3
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking serde v1.0.114
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking tera v0.11.20
[INFO] [stderr]     Checking cov v0.0.5
[INFO] [stderr]  Documenting cargo-cov v0.0.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 00s
[INFO] running `Command { std: "docker" "inspect" "1e833e21a03013583c8956624bb91f4ca5e48b952f1eccb258f482fa674262d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e833e21a03013583c8956624bb91f4ca5e48b952f1eccb258f482fa674262d8", kill_on_drop: false }`
[INFO] [stdout] 1e833e21a03013583c8956624bb91f4ca5e48b952f1eccb258f482fa674262d8