[INFO] cloning repository https://github.com/mix64/rv32g-emulator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mix64/rv32g-emulator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmix64%2Frv32g-emulator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmix64%2Frv32g-emulator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 75d56cd55408b6ccb52069ad4165a3229f666e9d
[INFO] documenting mix64/rv32g-emulator 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%2Fmix64%2Frv32g-emulator" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mix64/rv32g-emulator 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/mix64/rv32g-emulator
[INFO] finished tweaking git repo https://github.com/mix64/rv32g-emulator
[INFO] tweaked toml for git repo https://github.com/mix64/rv32g-emulator written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/mix64/rv32g-emulator 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 byteorder v0.5.3
[INFO] [stderr]   Downloaded softfloat-wrapper v0.1.1
[INFO] [stderr]   Downloaded cc-version v0.1.0
[INFO] [stderr]   Downloaded elf v0.0.10
[INFO] [stderr]   Downloaded softfloat-sys v0.1.2
[INFO] [stderr]   Downloaded c99 v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] [stdout] 4ae0e5d601f1173c220a917cbfd42a8c5587295e19eff8ce388a491984469f00
[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" "4ae0e5d601f1173c220a917cbfd42a8c5587295e19eff8ce388a491984469f00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ae0e5d601f1173c220a917cbfd42a8c5587295e19eff8ce388a491984469f00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ae0e5d601f1173c220a917cbfd42a8c5587295e19eff8ce388a491984469f00", kill_on_drop: false }`
[INFO] [stdout] 4ae0e5d601f1173c220a917cbfd42a8c5587295e19eff8ce388a491984469f00
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 31faea2e82137b9121da5b510d616419c537066b17811797377267604d2f8509
[INFO] running `Command { std: "docker" "start" "-a" "31faea2e82137b9121da5b510d616419c537066b17811797377267604d2f8509", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling c99 v0.1.1
[INFO] [stderr]     Checking elf v0.0.10
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling thiserror v1.0.20
[INFO] [stderr]    Compiling cc-version v0.1.0
[INFO] [stderr]    Compiling softfloat-sys v0.1.2
[INFO] [stderr]     Checking softfloat-wrapper v0.1.1
[INFO] [stderr]  Documenting rv32g-emulator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 45.39s
[INFO] running `Command { std: "docker" "inspect" "31faea2e82137b9121da5b510d616419c537066b17811797377267604d2f8509", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31faea2e82137b9121da5b510d616419c537066b17811797377267604d2f8509", kill_on_drop: false }`
[INFO] [stdout] 31faea2e82137b9121da5b510d616419c537066b17811797377267604d2f8509