[INFO] cloning repository https://github.com/CGQAQ/rust_rpn_calc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CGQAQ/rust_rpn_calc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCGQAQ%2Frust_rpn_calc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCGQAQ%2Frust_rpn_calc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d435b0f374bdce4cf9b266d0c43357b55f2211c5
[INFO] checking CGQAQ/rust_rpn_calc against master#0dce3f606e05cffab7361c132a399d3550ab0df8 for pr-78376
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCGQAQ%2Frust_rpn_calc" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/CGQAQ/rust_rpn_calc on toolchain 0dce3f606e05cffab7361c132a399d3550ab0df8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/CGQAQ/rust_rpn_calc
[INFO] finished tweaking git repo https://github.com/CGQAQ/rust_rpn_calc
[INFO] tweaked toml for git repo https://github.com/CGQAQ/rust_rpn_calc written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/CGQAQ/rust_rpn_calc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b4d7f8a1a884f0b86821cf66fae655ed1f3c5aff6e9f0406f63f0d815df990d8
[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" "b4d7f8a1a884f0b86821cf66fae655ed1f3c5aff6e9f0406f63f0d815df990d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b4d7f8a1a884f0b86821cf66fae655ed1f3c5aff6e9f0406f63f0d815df990d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4d7f8a1a884f0b86821cf66fae655ed1f3c5aff6e9f0406f63f0d815df990d8", kill_on_drop: false }`
[INFO] [stdout] b4d7f8a1a884f0b86821cf66fae655ed1f3c5aff6e9f0406f63f0d815df990d8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 51babf2e1b4e251320f1a6935945c93839af14c362bd03eb5bd7711fbcff9c98
[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" "51babf2e1b4e251320f1a6935945c93839af14c362bd03eb5bd7711fbcff9c98", kill_on_drop: false }`
[INFO] [stderr]     Checking rpn_calc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "51babf2e1b4e251320f1a6935945c93839af14c362bd03eb5bd7711fbcff9c98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51babf2e1b4e251320f1a6935945c93839af14c362bd03eb5bd7711fbcff9c98", kill_on_drop: false }`
[INFO] [stdout] 51babf2e1b4e251320f1a6935945c93839af14c362bd03eb5bd7711fbcff9c98