[INFO] cloning repository https://github.com/fabiovitalba/echo-proto
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fabiovitalba/echo-proto" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffabiovitalba%2Fecho-proto", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffabiovitalba%2Fecho-proto'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4c1ec8bfdd6f1960408737729fbac307e9128fdb
[INFO] checking fabiovitalba/echo-proto against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffabiovitalba%2Fecho-proto" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fabiovitalba/echo-proto on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/fabiovitalba/echo-proto
[INFO] finished tweaking git repo https://github.com/fabiovitalba/echo-proto
[INFO] tweaked toml for git repo https://github.com/fabiovitalba/echo-proto written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/fabiovitalba/echo-proto already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 28b54fd875a2234d7979be2e5f34f6876e96fb9e3b412b68b1326d93d20a1818
[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" "28b54fd875a2234d7979be2e5f34f6876e96fb9e3b412b68b1326d93d20a1818", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "28b54fd875a2234d7979be2e5f34f6876e96fb9e3b412b68b1326d93d20a1818", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28b54fd875a2234d7979be2e5f34f6876e96fb9e3b412b68b1326d93d20a1818", kill_on_drop: false }`
[INFO] [stdout] 28b54fd875a2234d7979be2e5f34f6876e96fb9e3b412b68b1326d93d20a1818
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fbc89ea9157c06e819021148096cb9895dd34b3ffb60a29fff40a8aaa90b9cac
[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" "fbc89ea9157c06e819021148096cb9895dd34b3ffb60a29fff40a8aaa90b9cac", kill_on_drop: false }`
[INFO] [stderr]     Checking lazycell v0.4.0
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]    Compiling nix v0.7.0
[INFO] [stderr]     Checking futures v0.1.8
[INFO] [stderr]     Checking net2 v0.2.26
[INFO] [stderr]     Checking tokio-service v0.1.0
[INFO] [stderr]     Checking mio v0.6.2
[INFO] [stderr]     Checking tokio-core v0.1.3
[INFO] [stderr]     Checking tokio-proto v0.1.0
[INFO] [stderr]     Checking echo-proto v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.23s
[INFO] running `Command { std: "docker" "inspect" "fbc89ea9157c06e819021148096cb9895dd34b3ffb60a29fff40a8aaa90b9cac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbc89ea9157c06e819021148096cb9895dd34b3ffb60a29fff40a8aaa90b9cac", kill_on_drop: false }`
[INFO] [stdout] fbc89ea9157c06e819021148096cb9895dd34b3ffb60a29fff40a8aaa90b9cac