[INFO] crate cargo-cache 0.4.3 is already in cache
[INFO] documenting cargo-cache-0.4.3 against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] extracting crate cargo-cache 0.4.3 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate cargo-cache 0.4.3 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-cache 0.4.3
[INFO] finished tweaking crates.io crate cargo-cache 0.4.3
[INFO] tweaked toml for crates.io crate cargo-cache 0.4.3 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate cargo-cache 0.4.3 already has a lockfile, it will not be regenerated
[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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 463ee9767e78c147e17f3a41f0c402f9e47ed6bbd000802b27c88170dabed7b9
[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" "463ee9767e78c147e17f3a41f0c402f9e47ed6bbd000802b27c88170dabed7b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "463ee9767e78c147e17f3a41f0c402f9e47ed6bbd000802b27c88170dabed7b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "463ee9767e78c147e17f3a41f0c402f9e47ed6bbd000802b27c88170dabed7b9", kill_on_drop: false }`
[INFO] [stdout] 463ee9767e78c147e17f3a41f0c402f9e47ed6bbd000802b27c88170dabed7b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stdout] 7bcb90218ab0437cd853bafc9511bc3301c8127dd162fcaed1eb89308b8b03ef
[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" "7bcb90218ab0437cd853bafc9511bc3301c8127dd162fcaed1eb89308b8b03ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.19
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]    Compiling rustc_tools_util v0.2.0
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking home v0.5.3
[INFO] [stderr]     Checking humansize v1.1.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking unicode-normalization v0.1.12
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]    Compiling cargo-cache v0.4.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling cc v1.0.52
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling libgit2-sys v0.12.5+1.0.0
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]     Checking git2 v0.13.5
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking serde_json v1.0.53
[INFO] [stderr]    Compiling serde_derive v1.0.110
[INFO] [stderr]     Checking cargo_metadata v0.10.0
[INFO] [stderr]  Documenting cargo-cache v0.4.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 49s
[INFO] running `Command { std: "docker" "inspect" "7bcb90218ab0437cd853bafc9511bc3301c8127dd162fcaed1eb89308b8b03ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bcb90218ab0437cd853bafc9511bc3301c8127dd162fcaed1eb89308b8b03ef", kill_on_drop: false }`
[INFO] [stdout] 7bcb90218ab0437cd853bafc9511bc3301c8127dd162fcaed1eb89308b8b03ef