[INFO] cloning repository https://github.com/pigeon-working-group/serde-perf
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pigeon-working-group/serde-perf" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpigeon-working-group%2Fserde-perf", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpigeon-working-group%2Fserde-perf'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7f51f0bc263632e4b03791f2b56958bed69a38bb
[INFO] documenting pigeon-working-group/serde-perf 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%2Fpigeon-working-group%2Fserde-perf" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pigeon-working-group/serde-perf 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/pigeon-working-group/serde-perf
[INFO] finished tweaking git repo https://github.com/pigeon-working-group/serde-perf
[INFO] tweaked toml for git repo https://github.com/pigeon-working-group/serde-perf written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/pigeon-working-group/serde-perf 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 bson v0.11.1
[INFO] [stderr]   Downloaded iter-read v0.1.0
[INFO] [stderr]   Downloaded ron v0.2.0
[INFO] [stderr]   Downloaded serde-pickle v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 5b76ce34aa056b5ea6bc194d70b770605994d5698fbeb1e177becae61f54f322
[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" "5b76ce34aa056b5ea6bc194d70b770605994d5698fbeb1e177becae61f54f322", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b76ce34aa056b5ea6bc194d70b770605994d5698fbeb1e177becae61f54f322", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b76ce34aa056b5ea6bc194d70b770605994d5698fbeb1e177becae61f54f322", kill_on_drop: false }`
[INFO] [stdout] 5b76ce34aa056b5ea6bc194d70b770605994d5698fbeb1e177becae61f54f322
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] b6be7a878243bf2637f4f6963ffed10b88b80a319a181654830941501fa993d6
[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" "b6be7a878243bf2637f4f6963ffed10b88b80a319a181654830941501fa993d6", kill_on_drop: false }`
[INFO] [stderr]     Checking num-traits v0.2.1
[INFO] [stderr]     Checking libc v0.2.39
[INFO] [stderr]     Checking dtoa v0.4.2
[INFO] [stderr]     Checking itoa v0.3.4
[INFO] [stderr]     Checking iter-read v0.1.0
[INFO] [stderr]     Checking bitflags v1.0.1
[INFO] [stderr]     Checking hex v0.2.0
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling serde_derive_internals v0.19.0
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking time v0.1.39
[INFO] [stderr]     Checking hostname v0.1.4
[INFO] [stderr]    Compiling serde_derive v1.0.27
[INFO] [stderr]     Checking num-integer v0.1.36
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking rmp v0.8.7
[INFO] [stderr]     Checking num-iter v0.1.35
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking chrono v0.4.0
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]     Checking num-bigint v0.1.43
[INFO] [stderr]     Checking serde v1.0.27
[INFO] [stderr]     Checking serde_json v1.0.11
[INFO] [stderr]     Checking serde_cbor v0.8.2
[INFO] [stderr]     Checking serde-pickle v0.4.0
[INFO] [stderr]     Checking rmp-serde v0.13.7
[INFO] [stderr]     Checking bincode v1.0.0
[INFO] [stderr]     Checking ron v0.2.0
[INFO] [stderr]     Checking bson v0.11.1
[INFO] [stderr]  Documenting serde-perf v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.16s
[INFO] running `Command { std: "docker" "inspect" "b6be7a878243bf2637f4f6963ffed10b88b80a319a181654830941501fa993d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6be7a878243bf2637f4f6963ffed10b88b80a319a181654830941501fa993d6", kill_on_drop: false }`
[INFO] [stdout] b6be7a878243bf2637f4f6963ffed10b88b80a319a181654830941501fa993d6