[INFO] cloning repository https://github.com/Nephos/rust-rpn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Nephos/rust-rpn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNephos%2Frust-rpn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNephos%2Frust-rpn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 57fe86c0a732a65870dae07af98b73979287255e
[INFO] checking Nephos/rust-rpn against master#31ee872db5aae4750e3da1ca4ed1523c4356947f for pr-78461
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNephos%2Frust-rpn" "/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/Nephos/rust-rpn on toolchain 31ee872db5aae4750e3da1ca4ed1523c4356947f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Nephos/rust-rpn
[INFO] finished tweaking git repo https://github.com/Nephos/rust-rpn
[INFO] tweaked toml for git repo https://github.com/Nephos/rust-rpn written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/Nephos/rust-rpn already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "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] b626b4ad2e8c0a3ffeb000a0cd415702374cc1f07389dcdb37f9daf0f7bdba13
[INFO] running `Command { std: "docker" "start" "-a" "b626b4ad2e8c0a3ffeb000a0cd415702374cc1f07389dcdb37f9daf0f7bdba13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b626b4ad2e8c0a3ffeb000a0cd415702374cc1f07389dcdb37f9daf0f7bdba13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b626b4ad2e8c0a3ffeb000a0cd415702374cc1f07389dcdb37f9daf0f7bdba13", kill_on_drop: false }`
[INFO] [stdout] b626b4ad2e8c0a3ffeb000a0cd415702374cc1f07389dcdb37f9daf0f7bdba13
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] acb7ab434099a51b90c4978671cf52e0868d7fc851c11ef1debc991ca396f298
[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" "acb7ab434099a51b90c4978671cf52e0868d7fc851c11ef1debc991ca396f298", kill_on_drop: false }`
[INFO] [stderr]     Checking rust3-calc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "acb7ab434099a51b90c4978671cf52e0868d7fc851c11ef1debc991ca396f298", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acb7ab434099a51b90c4978671cf52e0868d7fc851c11ef1debc991ca396f298", kill_on_drop: false }`
[INFO] [stdout] acb7ab434099a51b90c4978671cf52e0868d7fc851c11ef1debc991ca396f298