[INFO] cloning repository https://github.com/jemmyw/ev3_follow_the_line
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jemmyw/ev3_follow_the_line" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjemmyw%2Fev3_follow_the_line", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjemmyw%2Fev3_follow_the_line'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ae58e72f289f91382e2cd872b22b57be97bbac76
[INFO] documenting jemmyw/ev3_follow_the_line against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjemmyw%2Fev3_follow_the_line" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jemmyw/ev3_follow_the_line on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-0/source/.cargo/config
[INFO] started tweaking git repo https://github.com/jemmyw/ev3_follow_the_line
[INFO] finished tweaking git repo https://github.com/jemmyw/ev3_follow_the_line
[INFO] tweaked toml for git repo https://github.com/jemmyw/ev3_follow_the_line written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/jemmyw/ev3_follow_the_line already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1.46.0" "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] ddc68ab0e3989671d8b3a0d3ed2de5f62a19c4c0a3785ed4d70cfd8985318a12
[INFO] running `Command { std: "docker" "start" "-a" "ddc68ab0e3989671d8b3a0d3ed2de5f62a19c4c0a3785ed4d70cfd8985318a12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ddc68ab0e3989671d8b3a0d3ed2de5f62a19c4c0a3785ed4d70cfd8985318a12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ddc68ab0e3989671d8b3a0d3ed2de5f62a19c4c0a3785ed4d70cfd8985318a12", kill_on_drop: false }`
[INFO] [stdout] ddc68ab0e3989671d8b3a0d3ed2de5f62a19c4c0a3785ed4d70cfd8985318a12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1.46.0" "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] fbcc45fb3be151b91f3a9d878c325cca584075a266ae70f9cf18bd53d780561a
[INFO] running `Command { std: "docker" "start" "-a" "fbcc45fb3be151b91f3a9d878c325cca584075a266ae70f9cf18bd53d780561a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]    Compiling syn v1.0.21
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]    Compiling quote v1.0.5
[INFO] [stderr]    Compiling ev3dev-lang-rust-derive v0.8.0
[INFO] [stderr]     Checking ev3dev-lang-rust v0.8.0
[INFO] [stderr]  Documenting ev3 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.02s
[INFO] running `Command { std: "docker" "inspect" "fbcc45fb3be151b91f3a9d878c325cca584075a266ae70f9cf18bd53d780561a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbcc45fb3be151b91f3a9d878c325cca584075a266ae70f9cf18bd53d780561a", kill_on_drop: false }`
[INFO] [stdout] fbcc45fb3be151b91f3a9d878c325cca584075a266ae70f9cf18bd53d780561a