[INFO] cloning repository https://github.com/codeShark149/taproot-poc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/codeShark149/taproot-poc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FcodeShark149%2Ftaproot-poc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FcodeShark149%2Ftaproot-poc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 83423eaf2067aa6c28a3b2a4574d8575e9565455
[INFO] documenting codeShark149/taproot-poc against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FcodeShark149%2Ftaproot-poc" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/codeShark149/taproot-poc 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 git repo https://github.com/codeShark149/taproot-poc
[INFO] finished tweaking git repo https://github.com/codeShark149/taproot-poc
[INFO] tweaked toml for git repo https://github.com/codeShark149/taproot-poc written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/codeShark149/taproot-poc 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 rand_hc v0.1.0
[INFO] [stderr]   Downloaded rand_pcg v0.1.2
[INFO] [stderr]   Downloaded rand_xorshift v0.1.1
[INFO] [stderr]   Downloaded serde v1.0.102
[INFO] [stderr]   Downloaded cloudabi v0.0.3
[INFO] [stderr]   Downloaded rand_chacha v0.1.1
[INFO] [stderr]   Downloaded rand_os v0.1.3
[INFO] [stderr]   Downloaded hex v0.3.2
[INFO] [stderr]   Downloaded bech32 v0.7.1
[INFO] [stderr]   Downloaded bitcoin_hashes v0.7.1
[INFO] [stderr]   Downloaded rand_isaac v0.1.1
[INFO] [stderr]   Downloaded cc v1.0.41
[INFO] [stderr]   Downloaded autocfg v0.1.7
[INFO] [stderr]   Downloaded libc v0.2.65
[INFO] [stderr]   Downloaded rand v0.6.5
[INFO] [stderr]   Downloaded rand_jitter v0.1.4
[INFO] [stderr]   Downloaded bitcoin v0.21.0
[INFO] [stderr]   Downloaded secp256k1 v0.15.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b70e7bd99abe9ee9282d26f2bd438f184309557607f6216e2cf961b6012a4177
[INFO] running `Command { std: "docker" "start" "-a" "b70e7bd99abe9ee9282d26f2bd438f184309557607f6216e2cf961b6012a4177", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b70e7bd99abe9ee9282d26f2bd438f184309557607f6216e2cf961b6012a4177", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b70e7bd99abe9ee9282d26f2bd438f184309557607f6216e2cf961b6012a4177", kill_on_drop: false }`
[INFO] [stdout] b70e7bd99abe9ee9282d26f2bd438f184309557607f6216e2cf961b6012a4177
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stdout] 7bba9c6ee1ce709a7b6e21fc0bf0773728c7aba0420b77fa7d069a1fb049e657
[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" "7bba9c6ee1ce709a7b6e21fc0bf0773728c7aba0420b77fa7d069a1fb049e657", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.102
[INFO] [stderr]    Compiling cc v1.0.41
[INFO] [stderr]     Checking bech32 v0.7.1
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]    Compiling secp256k1 v0.15.5
[INFO] [stderr]     Checking bitcoin_hashes v0.7.1
[INFO] [stderr]     Checking bitcoin v0.21.0
[INFO] [stderr]  Documenting taproot-poc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.61s
[INFO] running `Command { std: "docker" "inspect" "7bba9c6ee1ce709a7b6e21fc0bf0773728c7aba0420b77fa7d069a1fb049e657", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bba9c6ee1ce709a7b6e21fc0bf0773728c7aba0420b77fa7d069a1fb049e657", kill_on_drop: false }`
[INFO] [stdout] 7bba9c6ee1ce709a7b6e21fc0bf0773728c7aba0420b77fa7d069a1fb049e657