[INFO] fetching crate derpy 0.1.0...
[INFO] documenting derpy-0.1.0 against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] extracting crate derpy 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate derpy 0.1.0 on toolchain 66dfc4e010913fbed0c4ea91fc2c010004b0f441
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate derpy 0.1.0
[INFO] finished tweaking crates.io crate derpy 0.1.0
[INFO] tweaked toml for crates.io crate derpy 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "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" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "metadata" "--no-deps" "--format-version=1", 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] a6af3d395e925885869ffe7ee8479debf009b2e1b8a50f897bc81d9df4a05169
[INFO] running `Command { std: "docker" "start" "-a" "a6af3d395e925885869ffe7ee8479debf009b2e1b8a50f897bc81d9df4a05169", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a6af3d395e925885869ffe7ee8479debf009b2e1b8a50f897bc81d9df4a05169", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6af3d395e925885869ffe7ee8479debf009b2e1b8a50f897bc81d9df4a05169", kill_on_drop: false }`
[INFO] [stdout] a6af3d395e925885869ffe7ee8479debf009b2e1b8a50f897bc81d9df4a05169
[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" "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" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d9d27ce1aa0b4f945562bc7ab0e012fecbdeabdd85ba4902167bb89534b57ae7
[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" "d9d27ce1aa0b4f945562bc7ab0e012fecbdeabdd85ba4902167bb89534b57ae7", kill_on_drop: false }`
[INFO] [stderr]     Checking adler32 v1.1.0
[INFO] [stderr]     Checking gimli v0.21.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking object v0.20.0
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling serde_json v1.0.56
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking strfmt v0.1.6
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking subprocess v0.1.20
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking addr2line v0.12.2
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]     Checking backtrace v0.3.49
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]  Documenting derpy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 42.63s
[INFO] running `Command { std: "docker" "inspect" "d9d27ce1aa0b4f945562bc7ab0e012fecbdeabdd85ba4902167bb89534b57ae7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9d27ce1aa0b4f945562bc7ab0e012fecbdeabdd85ba4902167bb89534b57ae7", kill_on_drop: false }`
[INFO] [stdout] d9d27ce1aa0b4f945562bc7ab0e012fecbdeabdd85ba4902167bb89534b57ae7