[INFO] cloning repository https://github.com/ssnover/rust-protobuf-investigation
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ssnover/rust-protobuf-investigation" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fssnover%2Frust-protobuf-investigation", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fssnover%2Frust-protobuf-investigation'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 38acda9e874082230f55f30c6a475cfdfb375bea
[INFO] checking ssnover/rust-protobuf-investigation against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fssnover%2Frust-protobuf-investigation" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ssnover/rust-protobuf-investigation on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ssnover/rust-protobuf-investigation
[INFO] finished tweaking git repo https://github.com/ssnover/rust-protobuf-investigation
[INFO] tweaked toml for git repo https://github.com/ssnover/rust-protobuf-investigation written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ssnover/rust-protobuf-investigation already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded protobuf v2.23.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2736c8e4e688f8f1962ce5c3a65517e70b9a89d929441669c89c1649bbda31d3
[INFO] running `Command { std: "docker" "start" "-a" "2736c8e4e688f8f1962ce5c3a65517e70b9a89d929441669c89c1649bbda31d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2736c8e4e688f8f1962ce5c3a65517e70b9a89d929441669c89c1649bbda31d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2736c8e4e688f8f1962ce5c3a65517e70b9a89d929441669c89c1649bbda31d3", kill_on_drop: false }`
[INFO] [stdout] 2736c8e4e688f8f1962ce5c3a65517e70b9a89d929441669c89c1649bbda31d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 804fa055f83dbad2426ed1af3da743f5b37ac9a561511f22390d6d95e488d1fd
[INFO] running `Command { std: "docker" "start" "-a" "804fa055f83dbad2426ed1af3da743f5b37ac9a561511f22390d6d95e488d1fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling protobuf v2.23.0
[INFO] [stderr]     Checking protobuf-example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.18s
[INFO] running `Command { std: "docker" "inspect" "804fa055f83dbad2426ed1af3da743f5b37ac9a561511f22390d6d95e488d1fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "804fa055f83dbad2426ed1af3da743f5b37ac9a561511f22390d6d95e488d1fd", kill_on_drop: false }`
[INFO] [stdout] 804fa055f83dbad2426ed1af3da743f5b37ac9a561511f22390d6d95e488d1fd