[INFO] fetching crate cracker 0.1.0...
[INFO] documenting cracker-0.1.0 against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] extracting crate cracker 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate cracker 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 cracker 0.1.0
[INFO] finished tweaking crates.io crate cracker 0.1.0
[INFO] tweaked toml for crates.io crate cracker 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded blake2 v0.5.2
[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] 29115c293326ae3ef1aa8bcc3eff2e9685cd7fa58f3bf6246514831def21922e
[INFO] running `Command { std: "docker" "start" "-a" "29115c293326ae3ef1aa8bcc3eff2e9685cd7fa58f3bf6246514831def21922e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "29115c293326ae3ef1aa8bcc3eff2e9685cd7fa58f3bf6246514831def21922e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29115c293326ae3ef1aa8bcc3eff2e9685cd7fa58f3bf6246514831def21922e", kill_on_drop: false }`
[INFO] [stdout] 29115c293326ae3ef1aa8bcc3eff2e9685cd7fa58f3bf6246514831def21922e
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6eff7237d53c74f92d7a1036d3491fde71535e811d640b094f3a0faafebef4b1
[INFO] running `Command { std: "docker" "start" "-a" "6eff7237d53c74f92d7a1036d3491fde71535e811d640b094f3a0faafebef4b1", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking crossbeam v0.2.12
[INFO] [stderr]     Checking byte-tools v0.1.3
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking generic-array v0.7.3
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking crypto-mac v0.3.0
[INFO] [stderr]     Checking digest v0.5.2
[INFO] [stderr]     Checking jobsteal v0.5.1
[INFO] [stderr]     Checking blake2 v0.5.2
[INFO] [stderr]     Checking pwhash v0.1.2
[INFO] [stderr]  Documenting cracker v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.82s
[INFO] running `Command { std: "docker" "inspect" "6eff7237d53c74f92d7a1036d3491fde71535e811d640b094f3a0faafebef4b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6eff7237d53c74f92d7a1036d3491fde71535e811d640b094f3a0faafebef4b1", kill_on_drop: false }`
[INFO] [stdout] 6eff7237d53c74f92d7a1036d3491fde71535e811d640b094f3a0faafebef4b1