[INFO] cloning repository https://github.com/nestorivan/rust_options_and_results_exercises
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nestorivan/rust_options_and_results_exercises" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnestorivan%2Frust_options_and_results_exercises", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnestorivan%2Frust_options_and_results_exercises'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8fb24f31da028a5785ebaad9c4ac4ff63dd2e4ba
[INFO] checking nestorivan/rust_options_and_results_exercises against master#4b596bbd847672da87763b76171687d3544863c2 for pr-144544
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnestorivan%2Frust_options_and_results_exercises" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/nestorivan/rust_options_and_results_exercises
[INFO] finished tweaking git repo https://github.com/nestorivan/rust_options_and_results_exercises
[INFO] tweaked toml for git repo https://github.com/nestorivan/rust_options_and_results_exercises written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/nestorivan/rust_options_and_results_exercises on toolchain 4b596bbd847672da87763b76171687d3544863c2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4b596bbd847672da87763b76171687d3544863c2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/nestorivan/rust_options_and_results_exercises 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" "+4b596bbd847672da87763b76171687d3544863c2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+4b596bbd847672da87763b76171687d3544863c2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7513b69e3c7d1086059ffbbb1c96be6f930d2ef42afb62a4cb1590bf67818524
[INFO] running `Command { std: "docker" "start" "-a" "7513b69e3c7d1086059ffbbb1c96be6f930d2ef42afb62a4cb1590bf67818524", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7513b69e3c7d1086059ffbbb1c96be6f930d2ef42afb62a4cb1590bf67818524", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7513b69e3c7d1086059ffbbb1c96be6f930d2ef42afb62a4cb1590bf67818524", kill_on_drop: false }`
[INFO] [stdout] 7513b69e3c7d1086059ffbbb1c96be6f930d2ef42afb62a4cb1590bf67818524
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+4b596bbd847672da87763b76171687d3544863c2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 47d98afa46a550ccb34dc49926ec5cc6cd931e2ceef3e49ad6c3f699ff959d72
[INFO] running `Command { std: "docker" "start" "-a" "47d98afa46a550ccb34dc49926ec5cc6cd931e2ceef3e49ad6c3f699ff959d72", kill_on_drop: false }`
[INFO] [stderr]     Checking options_and_results v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "47d98afa46a550ccb34dc49926ec5cc6cd931e2ceef3e49ad6c3f699ff959d72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47d98afa46a550ccb34dc49926ec5cc6cd931e2ceef3e49ad6c3f699ff959d72", kill_on_drop: false }`
[INFO] [stdout] 47d98afa46a550ccb34dc49926ec5cc6cd931e2ceef3e49ad6c3f699ff959d72