[INFO] fetching crate cmb 0.0.2...
[INFO] checking cmb-0.0.2 against master#ff1737bb00913444173658b4e0b274fd79aabf66 for pr-132712-1
[INFO] extracting crate cmb 0.0.2 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate cmb 0.0.2 on toolchain ff1737bb00913444173658b4e0b274fd79aabf66
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cmb 0.0.2
[INFO] finished tweaking crates.io crate cmb 0.0.2
[INFO] tweaked toml for crates.io crate cmb 0.0.2 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate cmb 0.0.2 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" "+ff1737bb00913444173658b4e0b274fd79aabf66" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2db1e6f38fd50483626d1cc138b36698eab814a147910256b7d2b977718a9899
[INFO] running `Command { std: "docker" "start" "-a" "2db1e6f38fd50483626d1cc138b36698eab814a147910256b7d2b977718a9899", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2db1e6f38fd50483626d1cc138b36698eab814a147910256b7d2b977718a9899", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2db1e6f38fd50483626d1cc138b36698eab814a147910256b7d2b977718a9899", kill_on_drop: false }`
[INFO] [stdout] 2db1e6f38fd50483626d1cc138b36698eab814a147910256b7d2b977718a9899
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4775ebcddcc470aa3213b49a073ce00b235a5dea375bab321ec01fdb4da4e4b6
[INFO] running `Command { std: "docker" "start" "-a" "4775ebcddcc470aa3213b49a073ce00b235a5dea375bab321ec01fdb4da4e4b6", kill_on_drop: false }`
[INFO] [stderr]     Checking cmb v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0601]: `main` function not found in crate `app`
[INFO] [stdout]   |
[INFO] [stdout]   = note: consider adding a `main` function to `examples/app.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0601`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cmb` (example "app") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "4775ebcddcc470aa3213b49a073ce00b235a5dea375bab321ec01fdb4da4e4b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4775ebcddcc470aa3213b49a073ce00b235a5dea375bab321ec01fdb4da4e4b6", kill_on_drop: false }`
[INFO] [stdout] 4775ebcddcc470aa3213b49a073ce00b235a5dea375bab321ec01fdb4da4e4b6