[INFO] cloning repository https://github.com/panicbit/toy_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/panicbit/toy_rpn_calc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpanicbit%2Ftoy_rpn_calc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpanicbit%2Ftoy_rpn_calc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d971b5d64b5698c40e12c6eeeb1e8fa7ee3e9b80
[INFO] checking panicbit/toy_rpn_calc against master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpanicbit%2Ftoy_rpn_calc" "/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/panicbit/toy_rpn_calc on toolchain 90442458ac46b1d5eed752c316da25450f67285b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/panicbit/toy_rpn_calc
[INFO] finished tweaking git repo https://github.com/panicbit/toy_rpn_calc
[INFO] tweaked toml for git repo https://github.com/panicbit/toy_rpn_calc written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/panicbit/toy_rpn_calc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f3fef850e0dfc93e098719ed3ece016ca935edfc94ca056abb9810b0e17eea53
[INFO] running `Command { std: "docker" "start" "-a" "f3fef850e0dfc93e098719ed3ece016ca935edfc94ca056abb9810b0e17eea53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f3fef850e0dfc93e098719ed3ece016ca935edfc94ca056abb9810b0e17eea53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3fef850e0dfc93e098719ed3ece016ca935edfc94ca056abb9810b0e17eea53", kill_on_drop: false }`
[INFO] [stdout] f3fef850e0dfc93e098719ed3ece016ca935edfc94ca056abb9810b0e17eea53
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cc46f3006a7e0440afae91f5a6a57da0ed5c9e9fe19c998612d7f5e0f931dc6d
[INFO] running `Command { std: "docker" "start" "-a" "cc46f3006a7e0440afae91f5a6a57da0ed5c9e9fe19c998612d7f5e0f931dc6d", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking backtrace-sys v0.1.23
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]    Compiling failure_derive v0.1.1
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]     Checking stackulon v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.93s
[INFO] running `Command { std: "docker" "inspect" "cc46f3006a7e0440afae91f5a6a57da0ed5c9e9fe19c998612d7f5e0f931dc6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc46f3006a7e0440afae91f5a6a57da0ed5c9e9fe19c998612d7f5e0f931dc6d", kill_on_drop: false }`
[INFO] [stdout] cc46f3006a7e0440afae91f5a6a57da0ed5c9e9fe19c998612d7f5e0f931dc6d