[INFO] cloning repository https://github.com/gcauchon/rustler-alpine
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gcauchon/rustler-alpine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgcauchon%2Frustler-alpine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgcauchon%2Frustler-alpine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4bd830a636ef3fa8ca0d8cd896ef62e7acca6c02
[INFO] checking gcauchon/rustler-alpine against master#7b3a7819371cef92a187e9bac8f7810ccde15216 for pr-74846
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgcauchon%2Frustler-alpine" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gcauchon/rustler-alpine on toolchain 7b3a7819371cef92a187e9bac8f7810ccde15216
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gcauchon/rustler-alpine
[INFO] finished tweaking git repo https://github.com/gcauchon/rustler-alpine
[INFO] tweaked toml for git repo https://github.com/gcauchon/rustler-alpine written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/gcauchon/rustler-alpine already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/rusterlium/rustler`
[INFO] [stderr] error: the lock file /workspace/builds/worker-6/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/rusterlium/rustler`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 060a74713206e91b660bc58fef43754924d70c23034f2fa437257224b1be615e
[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" "060a74713206e91b660bc58fef43754924d70c23034f2fa437257224b1be615e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "060a74713206e91b660bc58fef43754924d70c23034f2fa437257224b1be615e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "060a74713206e91b660bc58fef43754924d70c23034f2fa437257224b1be615e", kill_on_drop: false }`
[INFO] [stdout] 060a74713206e91b660bc58fef43754924d70c23034f2fa437257224b1be615e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "RUSTFLAGS=--cap-lints=forbid" "-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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "check" "--frozen" "--all" "--all-targets" "--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] a5609548dcd24c55c21b00939e6b16efc69ada264674bd2faee9381029e05085
[INFO] running `Command { std: "docker" "start" "-a" "a5609548dcd24c55c21b00939e6b16efc69ada264674bd2faee9381029e05085", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustler_sys v2.1.0 (https://github.com/rusterlium/rustler?branch=master#ac2fd985)
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling rustler v0.22.0-rc.0 (https://github.com/rusterlium/rustler?branch=master#ac2fd985)
[INFO] [stderr]     Checking fixedbitset v0.2.0
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]    Compiling indexmap v1.5.1
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling rustler_codegen v0.22.0-rc.0 (https://github.com/rusterlium/rustler?branch=master#ac2fd985)
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]     Checking rustler-alpine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.76s
[INFO] running `Command { std: "docker" "inspect" "a5609548dcd24c55c21b00939e6b16efc69ada264674bd2faee9381029e05085", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5609548dcd24c55c21b00939e6b16efc69ada264674bd2faee9381029e05085", kill_on_drop: false }`
[INFO] [stdout] a5609548dcd24c55c21b00939e6b16efc69ada264674bd2faee9381029e05085