[INFO] cloning repository https://github.com/gangashman/rust_recognition_digit
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gangashman/rust_recognition_digit" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgangashman%2Frust_recognition_digit", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgangashman%2Frust_recognition_digit'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6b714d18f451912eb46294b7003dd1dfe12a99ba
[INFO] documenting gangashman/rust_recognition_digit 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%2Fgangashman%2Frust_recognition_digit" "/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/gangashman/rust_recognition_digit 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/gangashman/rust_recognition_digit
[INFO] finished tweaking git repo https://github.com/gangashman/rust_recognition_digit
[INFO] tweaked toml for git repo https://github.com/gangashman/rust_recognition_digit written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/gangashman/rust_recognition_digit 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 mnist v0.4.0
[INFO] [stderr]   Downloaded rulinalg v0.4.2
[INFO] [stderr]   Downloaded matrixmultiply v0.1.13
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 27b3b064c4752aedf30a4041d64c5a41830b9b80ec6532be9ac143f91bd3706c
[INFO] running `Command { std: "docker" "start" "-a" "27b3b064c4752aedf30a4041d64c5a41830b9b80ec6532be9ac143f91bd3706c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "27b3b064c4752aedf30a4041d64c5a41830b9b80ec6532be9ac143f91bd3706c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27b3b064c4752aedf30a4041d64c5a41830b9b80ec6532be9ac143f91bd3706c", kill_on_drop: false }`
[INFO] [stdout] 27b3b064c4752aedf30a4041d64c5a41830b9b80ec6532be9ac143f91bd3706c
[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] bfd68f28260e73f6c896cf74a2d5ebcdfc11cf285d588d76c2c65356722cc5b5
[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" "bfd68f28260e73f6c896cf74a2d5ebcdfc11cf285d588d76c2c65356722cc5b5", kill_on_drop: false }`
[INFO] [stderr]     Checking num-traits v0.1.40
[INFO] [stderr]    Compiling matrixmultiply v0.1.13
[INFO] [stderr]     Checking libc v0.2.33
[INFO] [stderr]     Checking byteorder v1.1.0
[INFO] [stderr]     Checking mnist v0.4.0
[INFO] [stderr]     Checking rand v0.3.18
[INFO] [stderr]     Checking num-integer v0.1.35
[INFO] [stderr]     Checking num-iter v0.1.34
[INFO] [stderr]     Checking num v0.1.40
[INFO] [stderr]     Checking rulinalg v0.3.7
[INFO] [stderr]     Checking rulinalg v0.4.2
[INFO] [stderr]     Checking rusty-machine v0.5.4
[INFO] [stderr]  Documenting recognition_digit v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.18s
[INFO] running `Command { std: "docker" "inspect" "bfd68f28260e73f6c896cf74a2d5ebcdfc11cf285d588d76c2c65356722cc5b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfd68f28260e73f6c896cf74a2d5ebcdfc11cf285d588d76c2c65356722cc5b5", kill_on_drop: false }`
[INFO] [stdout] bfd68f28260e73f6c896cf74a2d5ebcdfc11cf285d588d76c2c65356722cc5b5