[INFO] cloning repository https://github.com/choimake/reverse_polish
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/choimake/reverse_polish" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchoimake%2Freverse_polish", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchoimake%2Freverse_polish'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 22a229fd49c0ac28a744a5b9f19ac8550e7eda23
[INFO] checking choimake/reverse_polish against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchoimake%2Freverse_polish" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/choimake/reverse_polish on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/choimake/reverse_polish
[INFO] finished tweaking git repo https://github.com/choimake/reverse_polish
[INFO] tweaked toml for git repo https://github.com/choimake/reverse_polish written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/choimake/reverse_polish already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b17e51db7b9090e8dee1ebbbca6dc1a0353b8152440bc79b050483d3a9899f96
[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" "b17e51db7b9090e8dee1ebbbca6dc1a0353b8152440bc79b050483d3a9899f96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b17e51db7b9090e8dee1ebbbca6dc1a0353b8152440bc79b050483d3a9899f96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b17e51db7b9090e8dee1ebbbca6dc1a0353b8152440bc79b050483d3a9899f96", kill_on_drop: false }`
[INFO] [stdout] b17e51db7b9090e8dee1ebbbca6dc1a0353b8152440bc79b050483d3a9899f96
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f33cc3d83550f50a7e74e902c4d44f7c4734ab8bc172de44bae2fd7cbddd5cf0
[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" "f33cc3d83550f50a7e74e902c4d44f7c4734ab8bc172de44bae2fd7cbddd5cf0", kill_on_drop: false }`
[INFO] [stderr]     Checking reverse-polish v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "f33cc3d83550f50a7e74e902c4d44f7c4734ab8bc172de44bae2fd7cbddd5cf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f33cc3d83550f50a7e74e902c4d44f7c4734ab8bc172de44bae2fd7cbddd5cf0", kill_on_drop: false }`
[INFO] [stdout] f33cc3d83550f50a7e74e902c4d44f7c4734ab8bc172de44bae2fd7cbddd5cf0